When you’re committed to crushing every workout to achieve your fitness goals, experiencing a low-energy, sluggish training session can be disheartening. It happens to the best of us, but a pre-workout supplement could help reduce those occurrences. These supplements are popular for their potential to boost energy, focus, and endurance—ultimately leading to more goal-crushing gym sessions.
Our team of certified personal trainers, nutrition experts, CrossFit coaches, and competitive weightlifters has tested over 50 pre-workouts. We’ve combined our heads to identify 11 of the best pre-workout supplements. Whether you want to improve focus, get leaner, or gain muscle, there’s a pre-workout on our list.
Best pre-workout overall
Transparent Labs Bulk takes the cake as the best overall pre-workout. It contains potent dosages of research-backed ingredients to help you feel improved energy, focus, and endurance for your most effective workouts yet.
Medical disclaimer: This article is intended for educational and informational purposes only. It is not intended as a substitute for medical advice. For health advice, contact a licensed healthcare provider.
Our picks for the best pre-workout
- Best overall: Transparent Labs BULK
- Best natural: Legion Athletics Pulse
- Best pre-workout without creatine: XWERKS Ignite
- Best high-stim: Nutricost Pre-X Xtreme
- Best for running: Gainful Pre-Workout
- Best for weight loss: Transparent Labs LEAN
- Best budget: Jacked Factory Nitrosurge
- Best for focus: Onnit Alpha BRAIN
- Best vegan: Promix Pre-Workout
- Best for beginners: Optimum Nutrition Gold Standard Pre-Workout
- Best-tasting: PRE JYM
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| Transparent Labs BULK | Legion Athletics Pulse | XWERKS Ignite | Nutricost Pre-X Xtreme | Gainful Pre-Workout | Transparent Labs LEAN | Jacked Factory Nitrosurge | Onnit Alpha BRAIN | Promix Pre-Workout | Optimum Nutrition Gold Standard Pre-Workout | PRE JYM | |
| Rating | |||||||||||
| Serving size | 21.2 grams | 23.5 grams | 10 grams | 15 grams | 10 to 16 grams | 14.2 grams | 8 to 16 grams | 10.4 grams | 9.5 grams | 10 grams | 24 to 27 grams |
| Servings per container | 30 | 20 | 30 | 30 | 14 | 30 | 15 or 30 | 20 | 30 | 30 | 30 |
| Price per serving | $1.67 | $2.25 | $1.63 | $1.10 | 1.86 | $1.67 | $1.00 or $2.00 | $3.00 | $1.07 | $1.10 | $1.83 |
| Caffeine per serving | 200 milligrams | 350 milligrams | 150 milligrams | 300 milligrams | 150 to 200 milligrams | 180 milligrams | 180 to 360 milligrams | 200 milligrams | 200 milligrams | 175 milligrams | 300 milligrams |
Best pre-workout overall: Transparent Labs BULK
Key product features
What you should know
Available in 12 flavors, Transparent Labs BULK contains no artificial colors, flavors, or sweeteners. It does, however, contain clinically-dosed ingredients, including nootropics for improved mood and focus.
- Our product tester appreciated how BULK provided sustained energy without any crashes.
- At $1.67 per serving, our top overall pre-workout is priced slightly above the market average.
- Transparent Labs created this pre-workout for active individuals who want clinical doses of key ingredients that support enhanced mood and performance.
Why we like Transparent Labs BULK as best overall
Transparent Labs is known for producing high-quality supplements, including one of our favorite protein powders . With 200 milligrams of caffeine, their BULK pre-workout is designed to provide energy, endurance, and pumps. It’s a third-party tested, high-quality formula made without artificial dyes, sweeteners, or flavors.
BULK contains 8 grams of citrulline malate. Citrulline malate helps boost nitric oxide production for improved blood flow and enhanced nutrient and oxygen supply to muscles. It may also improve muscular endurance and athletic performance during a workout. ( 1 )
Also included in clinically studied dosages are 4 grams of beta-alanine and 2.5 grams of BetaPure betaine anhydrous. ( 2 , 3 ) Beta-alanine helps increase muscle carnosine levels, which buffers lactic acid build-up in the muscles and potentially reduces muscle fatigue. ( 2 ) Betaine anhydrous may help you increase total reps and volume load during a weightlifting session. ( 4 )
Beyond its physical benefits, BULK incorporates nootropics to help promote the right mood and focus for the workout. L-tyrosine is an amino acid that can be converted to dopamine, which is a key brain neurotransmitter linked to stress management, motivation, and mental focus. ( 5 )
Furthermore, the ingredient alpha-GPC, a bioavailable source of choline, is recognized for its potential to elevate cognitive function, including memory, learning, and focus, especially when taken with caffeine. ( 6 )
Our expert product tester, a certified personal trainer, tried the blue raspberry flavor. He rated the taste a solid 5 out of 5 stars.
“The blue raspberry flavor tastes exactly like how it sounds. It’s not too sweet, which I think is a good thing.”
Team Product Tester
Moreover, the pre-workout powder mixed extremely well without any clumps, earning solubility a perfect score of 5 out of 5 stars.
Our tester experienced the full effects of BULK. He noticed increased focus during his workout without feeling too wired. He also didn’t experience any energy crashes once the caffeine wore off.
With a cost of $1.67 per serving, this product is priced higher than several other pre-workouts we recommend, placing it slightly above the average cost in this category. However, when you consider the potent formulation, nootropics, and third-party testing through Informed Choice—assuring that it is free of banned substances—it could be worth it.
What customers are saying
On Amazon, reviewers appreciate the clinically effective doses of ingredients and the immediate effects of Transparent Labs BULK.
“Performance wise the best I’ve ever experienced. Unparalleled focus and drive using this pre-workout. Highly recommended,” wrote verified customer Erik O.
A few customers were disappointed in some of the flavors and noticed an artificial taste despite the formula being all-natural.
“Decent product but like other people I have a hard time with the taste,” noted another verified buyer with the username “new customer.”
Specs
| Key ingredients | Citrulline malate, beta-alanine, BetaPure (betaine anhydrous), caffeine, AlphaSize (alpha-GPC) |
| Flavors | Strawberry lemonade, strawberry kiwi, piña colada, blue raspberry, black cherry, peach mango, sour grape, watermelon, watermelon peach, cherry splash, blueberry pomegranate, tropical punch |
| Price per serving | $1.67 |
| Number of servings | 30 |
| Serving size | 21.2 grams |
| Caffeine per serving | 200 milligrams |
| Third-party tested | Informed Choice |
Best natural pre-workout: Legion Athletics Pulse
Key product features
What you should know
Legion Athletics created caffeinated and non-caffeinated versions of Pulse in 20 flavors. While it’s made with natural ingredients, be prepared to pay a premium for this pre-workout.
- The caffeinated version of Legion Athletics Pulse contains 350 milligrams of caffeine, which is on the high end of the range for a pre-workout.
- At $2.25 per serving, this pre-workout is expensive compared to the category average.
- Made with 100% natural ingredients, Pulse should appeal to a wide range of users due to the number of flavors and availability of stim- and non-stim options.
Why we like Legion Athletics Pulse as best natural
Legion Athletics Pulse is made with 100% natural ingredients, meaning it never contains artificial dyes, sweeteners, or flavors. This gluten-free, vegetarian-friendly pre-workout is formulated to boost your energy, maximize strength, and minimize fatigue. Pulse comes in both stim and non-stim pre-workout options, meaning you can choose to forgo the caffeine if you’d like.
You may notice improved muscular endurance and recovery with 8 grams of citrulline malate in each serving. ( 1 ) Citrulline malate improves nitric oxide production and acts as a vasodilator, giving your muscles more oxygen.
Pulse also offers 3.6 grams of beta-alanine, 2.5 grams of betaine, and 300 milligrams of alpha-GPC. These ingredients could reduce exercise-induced fatigue, promote muscle strength, and increase power during high-intensity workouts. ( 22 )
Legion Pulse is available in 20 caffeinated and non-caffeinated flavors. The caffeinated options contain 350 milligrams of caffeine, which could boost energy but could be overwhelming for those sensitive to stimulants.
Sweeteners include stevia and erythritol. Erythritol is a sugar alcohol that could be correlated with blood clotting, but further research is needed to substantiate this. ( 23 )
Our expert tester, a certified personal trainer and Precision Nutrition certified nutrition coach, rated the taste 4 out of 5 stars.
“I tried the Blue Raspberry flavor. It’s sweet, but I found it kind of bitter. I also noticed a weird aftertaste.”
Team Product Tester
That said, the product’s solubility was superb, and our tester rated it 5 out of 5 stars. The mixed solution was opaque and didn’t have any grittiness or floaties.
Regarding the effects of Legion Athletics Pulse, another team product tester felt energized but not overstimulated.
What customers are saying
Reviews on Amazon for Legion Athletics Pulse are generally positive. Buyers appreciate the clean ingredients and the pump they feel after taking it.
“The supplements or other ingredients that are in this pre-workout are phenomenal and I would highly recommend getting this,” said verified customer Anthony.
Reviews are mixed on the taste, however. Some flavors appear to taste great while others taste bitter or leave a weird aftertaste.
Verified buyer Erik Baker II wrote, “Great price, gives you an energy boost without the jitters or cramping…great flavors as well! Love the blood orange, pink lemonade, and watermelon.”
Verified customer Diane Ray said, “I got the green apple flavor, and I can’t say it’s bad, but it’s definitely not the tastiest pre that I’ve tried. The flavor is good, but there’s also a bitterness to it, especially on the last swig.”
Specs
| Key ingredients | L-citrulline, beta-alanine, betaine anhydrous, caffeine, L-theanine, alpha-GPC |
| Flavors | Fruit Punch, Pina Colada, Rainbow Sherbert, Peach Ring, Blue Raspberry, Apple Cider, Arctic Blast, Blood Orange, Blueberry Lemonade, Cherry Limeade, Frosted Cranberry, Grape, Green Apple, Mojito, Pink Lemonade, Sour Candy, Strawberry Kiwi, Strawberry Margarita, Tropical Punch, Watermelon |
| Price per serving | $2.25 |
| Number of servings | 20 |
| Serving size | 23.5 grams |
| Caffeine per serving | 350 milligrams |
| Third-party tested | Labdoor |
Best pre-workout without creatine: XWERKS Ignite
Key product features
What you should know
XWERKS Ignite is a creatine-free pre-workout that utilizes nootropics for enhanced mood and concentration.
- While our product tester experienced some tingling that’s typically associated with beta-alanine, she felt energized and focused during her workouts.
- At $1.63 per serving, this pre-workout falls in line with the average price for this category.
- Lifters looking for a creatine-free way to boost their energy can use XWERKS Ignite without worrying about potential bloating problems.
Why we like XWERKS Ignite as best without creatine
XWERKS Ignite offers a distinctive pre-workout blend centered around nootropics. It claims to provide sustained, focused energy without the subsequent crash. It’s designed to elevate work capacity, reduce muscular fatigue, and amplify gym performance by using a unique blend of clinically backed ingredients. Ignite is free of creatine, with which many are already supplementing.
Ignite uses Rhodiola rosea and dimethylaminoethanol (DMAE) to support focus during physical activity. Rhodiola rosea is an adaptogen for enhancing physical and mental performance and fighting acute stress. ( 17 ) DMAE may help enhance concentration. ( 18 )
Ignite contains 150 milligrams of caffeine, vitamin B12, and vitamin B6 for greater physical energy. B vitamins are essential in generating cellular energy for daily tasks and exercise. ( 19 ) Caffeine, a well-known stimulant, hinders the effects of adenosine, a neurotransmitter that makes you feel relaxed and tired. ( 20 )
Furthermore, XWERKS Ignite includes 3 grams of citrulline malate and 1.5 grams of beta-alanine. This falls short of the 8 grams of citrulline malate clinically shown to enhance physical activity. ( 21 ) These components aim to enhance nitric oxide production, muscle function, and endurance. However, due to the lower doses, our testers rated Ignite’s formulation 2 out of 5 stars.
XWERKS Ignite comes in four flavors: Green Apple, Orange, Blue Raspberry, and Watermelon. One of our product testers, a certified personal trainer and Precision Nutrition coach, tried Watermelon. She rated the taste 4 out of 5 stars. While the flavor was tolerable, she thought it had an artificial taste and was overly sweet. These effects could be due to the artificial sweetener, sucralose.
Nevertheless, the pre-workout’s outstanding solubility warranted 5 out of 5 stars from our product tester. “Once the powder dissolved, the overall liquid consistency was very thin,” she noted.
She experienced some tingling, likely from the beta-alanine, but didn’t consider it too distracting. She felt Ignite gave her great energy and focus during her training sessions.
What customers are saying
On Amazon, XWERKS Ignite has received positive reviews for its taste. Buyers like how it improves their focus and allows them to push through tough workouts more easily. A few customers also appreciate the lower amount of caffeine per serving (150 milligrams) because it helps prevent energy crashes and doesn’t cause jitters.
“I tried the green apple, I was skeptical at first, but wow it tastes amazing,” wrote verified buyer Daniel. “Not only is it flavorful, but it also gives a great kick to your workout along with no crash.”
Customers who left negative reviews expressed disappointment in the amount of pre-workout in each container.
“I feel like for $50, they can give you more of it. Very pricey!” wrote one reviewer who referred to themselves as “A.”
Specs
| K ey ingredients | Caffeine, vitamin B6, vitamin B12, L-tyrosine, CarnoSyn beta-alanine |
| Flavors | Green Apple, Orange, Blue Raspberry, Watermelon |
| Price per serving | $1.63 |
| Number of servings | 30 |
| Serving size | 10 grams |
| Caffeine per serving | 150 milligrams |
| Third-party tested | No |
Best high-stim pre-workout: Nutricost Pre-X Xtreme
Key product features
What you should know
Nutricost Pre-X Xtreme offers a potent blend of caffeine, nootropics, and performance-enhancing ingredients for improved energy and focus. While some key ingredients are underdosed, the supplement’s affordability and third-party testing still make it a top choice.
- The combination of L-citrulline malate and Nitrosigine boost nitric oxide and increase blood flow to the muscles to improve exercise performance.
- At $1.10 per serving, our top high-stim pre-workout is priced below the market average.
- Made with gluten-free, non-GMO, and vegetarian ingredients, Pre-X is a great option for vegans and health-conscious users.
Why we like Nutricost Pre-X Xtreme as best high-stim
Designed to provide energy and focus, Nutricost Pre-X Xtreme is third-party-tested, boasts a high-quality formula, and contains gluten-free and non-GMO ingredients. One serving offers 300 milligrams of caffeine, making it ideal for users with a high caffeine tolerance who need a stronger pre-workout .
In addition to the performance-enhancing ingredients, Nutricost Pre-X Xtreme incorporates nootropics like L-tyrosine, alpha-GPC, DMAE bitartrate, CDP choline, and huperzine A to enhance cognitive performance and focus.
Each serving includes 250 milligrams of N-acetyl L-tyrosine, an amino acid and precursor to neurotransmitters such as dopamine and epinephrine. L-tyrosine may enhance cognitive performance, especially in short-term stressful or mentally demanding situations. Alpha-GPC is a choline-containing compound that may improve cognitive function, including memory and focus, especially when paired with caffeine. ( 42 )( 6 )
The citrulline in this formula helps improve blood flow and enhances nutrient and oxygen supply to muscles. However, Pre-X Xtreme only contains 4 grams of L-citrulline malate, which is below the clinical dose of 6 to 8 grams. This pre-workout also contains a clinical dose of Nitrosigine (a complex made of arginine, inositol, and potassium silicate), which increases blood flow to working muscles through vasodilation. The combination of these ingredients may improve athletic performance. ( 1 ) ( 41 )
There are also 2 grams of beta-alanine and 1.5 grams of betaine anhydrous per serving. Beta-alanine may reduce muscle fatigue, while betaine may help you perform more reps and volume during a weightlifting session. However, both of these ingredients are underdosed. The clinical dose for beta-alanine is 4 to 6 grams. A clinically effective dosage of betaine anhydrous is 2.5 grams. ( 2 )( 3)(4 )
With a cost of $1.10 per serving, this product is one of the most affordable pre-workouts we recommend, placing it well below the average cost in this category. When you consider the potent caffeine content, nootropics, and third-party testing, Nutricost provides a lot of value for your money.
What customers are saying
One verified buyer on Amazon named Joe said he loves this pre-workout and gets an excellent pump even though he only takes half a serving.
“Love this stuff. It really gets me going in the gym, today I hit a deadlift PR after taking this. I only take half a scoop because I have a pretty low caffeine tolerance, but this still really gets you going,” he wrote. “The pump, the body feel, the tingling from the beta alanine, you get a really high quality workout after taking this because it just gets your blood flowing. I’m amazed that it costs so little considering you get everything you want from a preworkout mix out of this.”
However, Joe said he wasn’t a huge fan of the blue raspberry flavor.
“My one complaint was the flavor: I got the blue raspberry stuff and MAN is that a strong flavor. I usually dry-scoop my preworkout but even when you dilute it with a ton of water it still has a very strong sour taste,” he commented. “My friends seemed to like the taste after I gave them a scoop but after having taken it a few times I think it’s way too strong. Still, I know I’ll be purchasing this product again because it’s such a fantastic value. Anyways, this stuff is fantastic for me during weightlifting, and I would 100% recommend it as someone who’s tried a lot of different mixes that try to get what this preworkout offers.”
Specs
| Key ingredients | L-citrulline malate, beta-alanine, taurine, betaine anhydrous, caffeine, alpha GPC |
| Flavors | Blue raspberry, watermelon, fruit punch, grape, peach mango |
| Price per serving | $1.10 |
| Number of servings | 30 |
| Serving size | 15 grams |
| Caffeine per serving | 300 milligrams |
| Third-party tested | Yes |
Best pre-workout for running: Gainful Pre-Workout
Key product features
What you should know
Gainful Pre-Workout is available caffeinated, non-caffeinated, with creatine, or without creatine so you can customize it based on your supplement needs and caffeine preference.
- The High Intensity + Creatine option is ideal for runners because it contains 200 milligrams of caffeine, 5 grams of creatine, and BCAAs. Together, these ingredients can help increase runners’ energy levels and improve muscle recovery.
- At $1.86 per serving, Gainful pre-workout is slightly above the market average price.
- That said, the addition of creatine and BCAAs replaces the need to buy multiple supplements, making it more cost-effective.
Why we like Gainful Pre-workout as best for running
Gainful offers a unique opportunity to customize your pre-workout’s caffeine and creatine content based on your exercise intensity. Whether you need an energy boost for a long outdoor run or a quick interval workout on one of the best treadmills , you may be particularly interested in the High-Intensity + Creatine option. It contains 5 grams of creatine, 4 grams of L-citrulline DL-malate, 1.5 grams of beta alanine, 200 milligrams of caffeine, 330 milligrams of L-theanine, BCAAs, and 2.5 grams of leucine. Combined, these ingredients can enhance high-intensity exercise performance and maximize endurance and recovery time.
The Moderate Intensity + Creatine option contains 4 grams of L-citrulline DL-malate, 3 grams of creatine, 1.5 grams of beta alanine, 150 milligrams of caffeine, 250 milligrams of L-theanine, and 2 grams of BCAAs total.
The Moderate Intensity option contains 4 grams of L-citrulline DL-malate, 1.5 grams of beta alanine, 150 milligrams of caffeine, 250 milligrams of L-theanine, and 2 grams of BCAAs total. It does not contain creatine.
There is also one non-caffeinated option (Moderate Intensity + Creatine) that contains 4 grams of L-citrulline DL-malate, 3 grams of creatine, 1.5 grams of beta alanine, and 2 grams of BCAAs total.
Each formula contains 4 grams of L-citrulline DL-malate, which falls short of the clinically recommended dosage for exercise performance (6 to 8 grams). The purpose of citrulline is to boost nitric oxide production, which enhances blood flow and nutrient delivery to muscles. ( 21 )
Leucine, isoleucine, and valine, the three branched-chain amino acids (BCAAs), are important for muscle growth and repair. Leucine, in particular, plays a key role in muscle protein synthesis. Creatine monohydrate is one of the most well-researched supplements and is well-known for its positive effect on high-intensity exercise performance. In addition to caffeine, Gainful Pre-Workout also contains L-theanine to help increase energy, improve mood and cognitive function, and reduce stress and anxiety. ( 35 )( 36 )( 24 )
Althought it’s priced above market average at $1.86 per serving, Gainful Pre-Workout contains BCAAs and creatine, replacing the need for a large supplement stack.
Specs
| Key ingredients | L-citrulline malate, creatine, beta-alanine, caffeine, L-theanine, BCAAs |
| Flavors | Watermelon, strawberry lemonade |
| Price per serving | $1.86 |
| Number of servings | 14 |
| Serving size | 10 to 16 grams |
| Caffeine per serving | 150 to 200 milligrams |
| Third-party tested | No |
Best pre-workout for weight loss: Transparent Labs LEAN
Key product features
What you should know
Available in nine flavors, Transparent Labs LEAN not only contains several ingredients with potential fat-burning benefits, but it also includes a clinically-dosed amount of citrulline malate for better pumps.
- LEAN contains a fat-burning complex that includes acetyl-L-carnitine, chromium picolinate, and zinc.
- Unlike many brands, Transparent Labs offers a full refund within 30 days if you don’t like the product.
- You can utilize LEAN to fuel your training sessions as you work on shedding extra pounds while retaining lean muscle.
Why we like Transparent Labs LEAN as best for weight loss
Transparent Labs LEAN is made to target fat loss while simultaneously preserving lean muscle mass. It includes the most common pre-workout ingredients for improved energy and power, such as citrulline malate and caffeine, plus a fat-burning complex that may help you shed stubborn body weight with regular exercise.
Each serving contains acetyl-L-carnitine, chromium picolinate, and zinc, which may help with metabolism and support fat utilization. L-carnitine helps move fatty acids into your cells’ mitochondria to be converted into cellular energy, also known as ATP. ( 27 ) Some research shows L-carnitine may help reduce body fat, body mass index, and weight. ( 28 )
Chromium picolinate is a form of the mineral chromium that may help manage blood sugar and cravings, as well as optimize metabolism. ( 29 ) However, studies show minimal weight loss during chromium supplementation. ( 30 )
Finally, zinc may help control appetite and reduce weight in individuals at an unhealthy weight. ( 31 )
This product still contains the usual pre-workout ingredients like citrulline malate, beta-alanine, and betaine anhydrous, which may improve vasodilation (widening of the blood vessels), endurance, and energy for a well-executed workout session. It also includes 180 milligrams of caffeine to reduce fatigue. However, the 2-gram dose of beta-alanine is lower than the recommended 4 to 6 grams daily. ( 2 )
You have nine flavor options, providing plenty of opportunities to mix things up. Our tester enjoyed the taste of LEAN and rated it 5 out of 5 stars. However, she rated solubility 4 stars.
“It wasn’t too sweet and was just a tad bitter,” she says. “I noticed some floaties in my shaker bottle once it was mixed, but it was still drinkable. I didn’t experience any jitters after drinking a full serving size.”
What customers are saying
On Amazon, the pre-workout earned high marks for its clean formula and transparent nutrition label.
“The things I appreciate the most are the transparency and quality of the ingredients,” verified buyer James wrote. “I use this nightly heading to the gym. Although I haven’t experienced any big boost of energy, the ingredients keep me committed to using it.”
Some Amazon customers enjoyed the flavors while others said they wouldn’t order this pre-workout again. “The product tastes terrible, like a super artificial peach…won’t be buying again,” said verified buyer Johanna T.
Specs
| Key ingredients | Citrulline malate, beta-alanine, betaine anhydrous, caffeine, L-carnitine, chromium picolinate, zinc |
| Flavors | Strawberry Lemonade, Sour Grape, Fruit Punch, Sour Peach, Blue Raspberry, Green Apple, Orange, Tropical Punch, Cherry Splash |
| Price per serving | $1.67 |
| Number of servings | 30 |
| Serving size | 14.2 grams |
| Caffeine per serving | 180 milligrams |
| Third-party tested | Informed Choice |
Best pre-workout on a budget: Jacked Factory Nitrosurge
Key product features
What you should know
Jacked Factory Nitrosurge is a low-caffeine, low-cost pre-workout that should allow new lifters to get used to the feeling of fueling up before a training session.
- Our product tester rated the formulation 4 out of 5 stars, noting that it contains performance-boosting ingredients like L-citrulline and L-theanine.
- Nitrosurge only costs $1 per serving if using one scoop, making it among the most inexpensive pre-workouts in this category.
- With a moderate amount of caffeine and a low price tag, Nitrosurge works well for beginners who want to test their tolerance without making a significant investment.
Why we like Jacked Factory Nitrosurge as best on a budget
At just $1.00 per serving (for one scoop), Jacked Factory Nitrosurge provides an affordable option for beginners interested in testing their tolerance to the typical pre-workout ingredients. The label includes nutrition information for a single-scoop or double-scoop serving, depending on your desired intensity.
The formulation, which our product tester rated 4 out of 5 stars, contains several workout-enhancing ingredients. For example, one scoop offers 3 grams of L-citrulline, a non-essential amino acid that may heighten nitric oxide production and support more efficient blood flow to the muscles, potentially giving you a performance advantage to get in extra reps. ( 7 )
However, some ingredients are underdosed. The beta-alanine content of 1.6 grams per scoop falls below the 4- to 6-gram daily recommended dosage suggested by the International Society of Sports Nutrition for certain exercises but lessens the likelihood of experiencing the common side effect of paraesthesia (tingling). ( 2 ) Beta-alanine has the potential to decrease muscle fatigue and extend the duration of exercise before reaching exhaustion. ( 2 )
Similarly, the 1.25 grams of betaine anhydrous in a scoop of Nitrosurge doesn’t meet the clinically studied dose of 2.5 grams shown to improve exercise performance. ( 3 ) If you take the double scoop, you meet that threshold. Betaine anhydrous may positively influence body composition, muscle growth, and work capacity.
Theobromine and L-theanine work together to sharpen mental focus, diminish susceptibility to distractions, and reduce stress, promoting a more accomplished workout. ( 24 ) AstraGin is a patented ingredient incorporated to help your body better absorb the key nutrients within the formulation.
Nitrosurge is sweetened with sucralose and Ace-K, two artificial, zero-calorie sweeteners. Our tester tried the Strawberry Margarita flavor (only available on Amazon) and rated the taste 5 out of 5 stars.
Editorial team member Kate Meier, a certified personal trainer and competitive Olympic weightlifter, said, “I could sip on the Strawberry Margarita Nitrosurge all day while laying out by the pool.”
Kate also rated solubility 5 out of 5 stars. She used a shaker cup to mix Nitrosurge with water and experienced no trouble dissolving the product. She didn’t feel any tingles or itching, a common side effect of pre-workouts with beta-alanine, but noticed a sense of heightened energy.
What customers are saying
Jacked Factory Nitrosurge appears to be a popular pre-workout choice on Amazon. Customers say they enjoy the range of flavors and don’t experience too many facial tingles.
“I really like this pre-workout and have tried it in multiple flavors but the blue raspberry is my favorite,” verified customer Catherine Charbonneau wrote. “Sour peach rings is also tasty.”
A few Amazon reviewers stated they didn’t feel any effects, but most buyers say they start feeling it pretty quickly. Nitrosurge helps them remain energized, even for workouts that last more than two hours.
“The pump/effects didn’t last long. Not the worst but won’t be buying again,” commented verified buyer Joshua Langel.
Specs
| Key ingredients | L-citrulline, beta-alanine, caffeine, betaine anhydrous, L-theanine, theobromine, AstraGin |
| Flavors | Swoleberry, Green Apple, Cherry Bomb, Blue Raspberry, Cherry Limeade, Arctic White, Pineapple, Watermelon, Fruit Punch, Grape, Sour Peach Rings, Blue Lemonade, Black Cherry, Cotton Candy |
| Price per serving | $1.00 to $2.00 |
| Number of servings | 15 or 30 |
| Serving size | 8 to 16 grams |
| Caffeine per serving | 180 to 360 milligrams |
| Third-party tested | No |
Best pre-workout for focus: Onnit Alpha BRAIN
Key product features
What you should know
Onnit Alpha BRAIN includes typical pre-workout ingredients like beta-alanine, L-citrulline, and caffeine, plus ashwagandha for improved mood and reduced stress.
- Alpha BRAIN contains a trademarked form of ashwagandha extract—an adaptogen that may help relieve stress and anxiety.
- At $3.00 per serving, this focus-enhancing pre-workout is one of the most expensive in this category.
- Onnit Alpha BRAIN supports mental focus and physical energy, which makes it a great choice if
Why we like Onnit Alpha BRAIN as best for focus
Onnit Alpha BRAIN pre-workout is formulated with key ingredients that support mental focus and physical energy so you can make the most of every training session. It also contains fundamental pre-workout ingredients, including beta-alanine, L-citrulline, and caffeine, to increase energy levels, alertness, strength, and endurance.
The L-citrulline dosage, at 2.4 grams, falls below the clinically recommended range of 3 to 6 grams. ( 7 ) In a study involving cyclists, those who consumed a daily dosage of only 2.4 grams of L-citrulline for eight days could cycle faster and longer than the placebo group before experiencing fatigue. ( 8 )
Onnit Alpha BRAIN provides 200 milligrams of caffeine and 50 grams of Dynamine in each serving. Dynamine is a trademarked ingredient that may help improve working memory, cognitive control, and reaction time when taken with caffeine. ( 9 ) Together, these two ingredients could enhance cognitive performance during mentally demanding tasks.
For even more cognitive benefits, each serving provides 225 milligrams of Nooghanda, a trademarked form of ashwagandha extract. Ashwagandha is an adaptogen that may help relieve stress and anxiety and improve memory and mood. ( 10 ) Some research even suggests ashwagandha could improve physical strength and power. ( 11 )
Your two flavor choices include Tiger’s Blood and Yuzu Peach. Alpha BRAIN utilizes natural sweeteners and never contains artificial colors or flavors.
Two of our expert testers, who are competitive Olympic weightlifters and certified weightlifting coaches, tried both flavors. They rated the taste 4 out of 5 stars. Of the two flavors, they preferred Tiger’s Blood.
“Tiger’s Blood has a tropical taste, but doesn’t have a lot of pineapple like you’d expect in a tropical drink. Instead, there are hints of coconut, watermelon, and strawberry.”
Team Product Tester
The Yuzu Peach flavor had a slightly bitter taste that our testers found off-putting. However, they rated solubility 5 out of 5 stars and had no trouble mixing the powder.
Our testers also had other weightlifters at their gym try Onnit Alpha BRAIN. The consensus was clear: it enhanced their focus and clarity during workouts. They didn’t find it overly stimulating like other pre-workouts with a higher caffeine content. Rather, it helped them feel present and ready to do the work.
Our team didn’t experience any beta-alanine tingles or itching from this one, but some still got a good pump. Overall, they had a positive experience and rated the effects 4 out of 5 stars.
What customers are saying
Reviews on Amazon are mixed. Positive reviews mention increased energy and concentration in the gym as noteworthy features.
One anonymous verified buyer on Amazon wrote, “The focus is better with this pre-workout thanks to the nootropic blend and the energy is definitely there. It’s pricey but…it’s worth a try for sure.”
Other reviewers say this pre-workout tastes bitter. Another anonymous verified customer also said the supplement “doesn’t mix well at all. Product sticks to shaker cup and doesn’t break down like it should.”
Specs
| Key ingredients | L-citrulline, beta-alanine, caffeine, ashwagandha, Dynamine, alpha-GPC |
| Flavors | Tiger’s Blood, Yuzu Peach |
| Price per serving | $3.00 |
| Number of servings | 20 |
| Serving size | 10.4 grams |
| Caffeine per serving | 200 milligrams |
| Third-party tested | No |
Best vegan pre-workout: Promix Pre-Workout
Key product features
What you should know
Made with 200 milligrams of caffeine, Promix is an all-natural pre-workout that supports performance and cognition.
- Promix Pre-Workout contains 3.2 grams of beta-alanine for improved performance and 3 grams of L-tyrosine for focus.
- At $1.07 per serving, Promix Pre-Workout is priced well below market average and is one of the most affordable options we’ve come across.
- This formula is vegan and keto, making it a solid option for a wide range of users.
Why we like Promix Pre-Workout as best vegan
Pre-workout supplements generally don’t contain animal products, but Promix is our favorite vegan option. It contains all-natural ingredients and is free of gluten, dairy, soy, and GMOs. With 200 miligrams of caffeine, 3.2 grams of beta-alanine, 3 grams of L-tyrosine and 1 gram of taurine, it can improve endurance exercise and help boost energy, cognitive function, and focus.
Caffeine can help improve cognitive function, including reaction time, memory, and attention. In terms of exercise performance, caffeine can improve aerobic and anaerobic exercise, and has a positive effect on endurance, sprint speed, and muscle power. Taurine is an amino acid that may benefit athletic performance. However, it’s usually combined with caffeine or other ingredients in studies, so it’s unclear if those benefits are directly related to taurine. ( 43 )( 44 )
Beta-alanine is most beneficial for high-intensity exercises lasting 1 to 10 minutes. This includes running, swimming, and heavy weightlifting. Some studies show a range of 3.2 to 6.4 grams of beta-alanine taken daily is effective for enhancing exercise performance, but others suggest a range of 4 to 6 grams might be more ideal. ( 45 )
This formula also contains 3 grams of L-tyrosine to improve focus and cognition. L-tyrosine is especially beneficial under short-term stressful or cognitively demanding conditions. ( 42 )
If you’d prefer a pre-workout without caffeine, there is a stim-free option in the raspberry lemon flavor. There is also a tingle-free formula that doesn’t contain beta-alanine.
At $1.07 per serving, Promix Pre-Workout is the most affordable option we featured. However, it contains fewer key ingredients than other pre-workouts on the market, like L-citrulline. Also, the beta-alanine isn’t a clinically effective dosage. But we do like that Promix is made in GMP-certified facilities and is third-party tested. The testing data is available on the Promix website.
What customers are saying
On Amazon, customers regularly leave positive reviews about the taste, clean ingredients, and packaging.
“I bought this for the clean ingredients- was a little afraid I’d have to sacrifice taste for the clean ingredients but the flavor is surprisingly good,” wrote one verified buyer named Lo. “I bought the strawberry lemon flavor. It’s not as sweet as other pre workouts because it doesn’t have all the added sugar like some do (& that was my goal to avoid), but I actually like the subtle sweetness from the monk fruit better.”
A verified Amazon customer named Annie also liked the light flavor and use of natural sweeteners.
“Every other pre workout I’ve tried tastes terribly overly flavored and sweetened with artificial sweeteners. This is only one with the ingredients I was looking for that didn’t have all kinds of excess sweetness and flavor. Plus the packaging is not a big plastic tub and scooper. Thoughtfully done.“
Verified Amazon Customer
However, some customers said they felt sick or experienced nausea after taking Promix Pre-Workout.
“I took this pre-workout and after about 45 minutes I experienced extreme nausea. It took about 3 hours to fully get out of my system,” noted verified buyer Kait. “I have taken pre-workouts in the past and I regularly drink caffeine so I am not sure why I reacted the way I did.”
Specs
| Key ingredients | Beta-alanine, L-tyrosine, taurine, caffeine, vitamin B12 |
| Flavors | Mixed berry, pink lemonade, Florida orange, strawberry lemon, cherry lime, raspberry lemon, lemon |
| Price per serving | $1.07 |
| Number of servings | 30 |
| Serving size | 9.5 grams |
| Caffeine per serving | 200 milligrams |
| Third-party tested | Yes |
Best pre-workout for beginners: Optimum Nutrition Gold Standard Pre-Workout
Key product features
What you should know
Optimum Nutrition Gold Standard Pre-Workout may not have a high amount of caffeine, but it does feature 3 grams of creatine per serving. Plus, it’s well-priced and earns high marks for taste.
- Optimum Nutrition formulated this pre-workout with a clinically dosed 3 grams of creatine, which can help support strength and muscle gains.
- At $1.10 per serving, Gold Standard Pre-Workout is among the most affordable supplements in this category.
- With only 175 grams of caffeine per serving, this pre-workout will provide an energy boost without increasing your heart rate significantly.
Why we like Optimum Nutrition Gold Standard Pre-Workout as best for beginners
Optimum Nutrition Gold Standard Pre-Workout blends caffeine, creatine monohydrate, and beta-alanine to increase energy, enhance focus, and improve endurance. The dosages are suitable for beginners who want to ease into pre-workout supplements or for individuals who prefer milder effects than full doses of pre-workout ingredients.
Unlike many pre-workout supplements, this one contains a clinically dosed 3 grams of creatine, a chemical found naturally in the body that helps produce energy in muscle. When supplemented, creatine monohydrate may increase strength and muscle gains when combined with regular resistance training. ( 32 )
Furthermore, 1.5 grams of beta-alanine may help buffer the accumulation of lactic acid buildup, possibly improving muscular endurance and allowing you to exercise longer before feeling fatigued. ( 2 ) Although this dose is lower than the recommended 4 to 6 grams daily, it may be preferred by beginners who want to assess tolerance or reduce the feeling of skin tingling caused by beta-alanine.
The 175 grams of caffeine is plenty to give a push of energy and focus but likely won’t trigger uncomfortable side effects of higher doses, such as rapid heart rate or anxiety. Additionally, L-carnitine plays a critical role in fat metabolism and may support weight loss. Some research shows it could help reduce body weight and fat mass in adults at an unhealthy weight. ( 33 )
Finally, the product offers several vitamins that support energy. B vitamins, including vitamin B12, niacin, folate, pantothenic acid, and thiamine, are essential for energy metabolism. These vitamins help convert carbohydrates, fats, and proteins to energy that can be used during physical exercise. ( 34 ) While Gold Standard Pre-Workout won’t necessarily eliminate the need for a high-quality multivitamin , the inclusion of several essential vitamins is a nice touch.
Some of our product testers have used Optimum Nutrition Gold Standard Pre-Workout for years. They rate the taste 5 out of 5 stars, claiming the flavors are always delicious and just the right amount of sweet. They also love the product’s solubility, giving it 5 out of 5 stars. It easily mixes in a mixer cup without any floaties or clumps.
“I feel focused and energized when I take Gold Standard Pre-Workout. It doesn’t provide the greatest pump, but it’s always a reliable choice for a pre-workout.”
Kate Meier, Team Product Tester
What customers are saying
Customers on Amazon praise this pre-workout’s solubility and great-tasting flavors. They like that it contains creatine so they don’t have to spend money on another supplement.
“I love this pre-workout. Having the creatine mixed in is awesome and I love the taste,” wrote verified buyer Don Kitchen.
However, several Amazon reviewers claim it doesn’t give them the same amount of energy as other pre-workouts, even ones that have a similar amount of caffeine (175 milligrams per serving).
“This will certainly help you get moving, but it does not really help you focus nor does it give you a surge of energy,” verified customer Chris wrote in their review.
Specs
| Key ingredients | L-citrulline, beta-alanine, caffeine, creatine monohydrate, L-tyrosine, AstraGin |
| Flavors | Blueberry Lemonade, Fruit Punch, Green Apple, Watermelon |
| Price per serving | $1.10 |
| Number of servings | 30 |
| Serving size | 10 grams |
| Caffeine per serving | 175 milligrams |
| Third-party tested | Yes |
Best-tasting pre-workout: Jym PRE JYM
Key product features
What you should know
With 300 milligrams of caffeine per serving, PRE JYM should provide sufficient energy to power through your workouts. This pre-workout will also support your muscle-building journey via BCAAs, creatine, and other ingredients.
- PRE JYM stands out from its competitors by including BCAAs and creatine—both of which play important roles in muscle growth and repair.
- This pre-workout costs $1.83 per serving, putting it above the average cost for this category.
- Not only does PRE JYM taste great, but it contains 13 active ingredients that can enhance your performance and help you build lean muscle.
Why we like PRE JYM as best-tasting
PRE JYM is one of our team’s favorite pre-workouts for its effectiveness and delicious taste. Coming from product testers who’ve tried over 50 pre-workouts, that says a lot. PRE JYM contains just the right sweetness with no bitter or artificial aftertaste.
JYM pre-workout contains 14 active ingredients that have been studied for their potential to enhance exercise and build muscle.
The key ingredients in JYM pre-workout include 6 grams of citrulline malate, 6 grams of branched-chain amino acids (BCAAs), 2 grams of creatine, and 2 grams of beta-alanine. The BCAAs and creatine immediately make this product stand out from others that don’t include these ingredients.
BCAAs are essential for muscle growth and repair. Leucine is an essential BCAA that creates new proteins in muscle cells, which is necessary for visible gains. ( 35 )
Regarding muscle gains, PRE JYM contains creatine, which could enhance muscle strength and growth. ( 32 ) However, this product’s 2 grams of creatine hydrochloride (HCl) don’t meet the clinically studied dose of 3 to 5 grams. ( 36 )
Furthermore, while the body may more readily absorb creatine HCl, extensive research does not support its effectiveness in enhancing exercise performance or promoting muscle mass growth compared to creatine monohydrate.
PRE JYM contains several nitric oxide boosters and beetroot extract. These ingredients are vasodilators that improve blood flow to the muscles, which could result in greater muscle pumps. ( 37 ) It also contains betaine anhydrous, which can support strength during training and more desirable body composition. ( 40 )
Moreover, the product includes alpha-GPC, a nootropic that can help with mental focus and heightened motivation. ( 38 ) As if that wasn’t enough, each serving boasts 300 milligrams of caffeine. If you’re sensitive to stimulants like caffeine, consider starting with half a scoop to see how you feel.
Two of our product testers tried the Rainbow Sherbet and Pineapple Strawberry flavors, and they rated the taste 4.5 out of 5 stars. “If it didn’t have so much caffeine, I would drink the Pineapple Strawberry flavor while sitting on a beach,” one of our testers commented.
Another reviewer, a USA Weightlifting Level 2 coach, noted that the Rainbow Sherbet flavor was delicious and sweet.
Both product testers rated solubility 5 out of 5 stars. They experienced no issues mixing it in a shaker bottle.
What customers are saying
Satisfied customers on Amazon say PRE JYM doesn’t give them a rapid heartbeat like other pre-workout formulas. Instead, it offers a steady source of energy and results in good pumps that last even when their workouts are done.
“This product gives me the pump I need for my workouts without the jitters that other pre-workouts give,” verified customer Anthony Ellenwood wrote.
Overall, Amazon buyers are pleased with the flavors, especially Rainbow Sherbert, Pineapple Strawberry, and Grape Candy. However, some say this pre-workout is too sweet for their liking. Others say they notice an artificial taste.
“Doesn’t taste like it says,” commented verified buyer Gary Mayes. “Not really impressed with it.”
Specs
| Key ingredients | Citrulline malate, BCAAs, creatine HCL, caffeine, beta-alanine, betaine anhydrous, alpha-GPC |
| Flavors | Orange Mango, Rainbow Sherbet, Tangerine, Grape Candy, Pink Lemonade, Pineapple Strawberry, Black Cherry, Strawberry Kiwi, Cherry Limeade, Raspberry Lemonade |
| Price per serving | $1.83 |
| Number of servings | 30 |
| Serving size | 27 grams |
| Caffeine per serving | 300 milligrams |
| Third-party tested | No |
How we test pre-workout supplements
We evaluate and score the best pre-workout supplements by taking numerous factors into consideration. We look for the best overall products, not just those that succeed in one or two categories. These top pre-workouts excel in multiple areas and are ranked according to our testing criteria below. Check out our full supplements testing methodology for an in-depth look at each factor.
Efficacy—40%
The best pre-workouts should do exactly what they advertise. We evaluated each pre-workout on its overall effectiveness with first-hand testing by our team of experts, as well as the dosing and effectiveness of each major ingredient based on clinical research. Here’s what we look at:
- Clinical evidence
- Calories per serving
- Dose efficacy
- Synergistic effects
- Proprietary blends
Safety and side effects—35%
Potential health risks, side effects, and screening for unsafe or banned substances are all important factors to consider in a pre-workout supplement. We reviewed the following in order to provide you with the best guidance:
- Reported side effects
- Third-party testing
- Manufacturer accreditation
- Artificial sweeteners
Value—20%
While efficacy and safety are key, it’s also important to get the most out of your money. Our team reviewed each product to make sure it’s well worth the price for what it offers.
- Price per serving
Customer experience—5%
Lastly, our team evaluated the experience numerous customers had during and after purchasing each product. We believe it’s important that our readers have a good experience with the products we recommend.
- Ease of purchase
- Shipping and returns
- Customer support
Benefits of pre-workout
Incorporating pre-workout before exercise has the potential to improve athletic performance, boost energy levels, and heighten focus. Here’s a look at how these supplements could help to maximize your workouts:
- Increased energy: Pre-workout ingredients like caffeine may temporarily diminish fatigue and elevate energy levels.
- Improved endurance: Pre-workout supplements commonly include ingredients that could enhance endurance, delay the onset of fatigue, and reduce perceived exertion during physical activity.
- Enhanced focus: Formulas containing caffeine, L-tyrosine, and L-theanine have the potential to enhance mental focus, alertness, mood, and overall cognition.
- Improved blood flow: Ingredients like citrulline promote nitric oxide production, enhancing blood flow and increasing the delivery of oxygen and nutrients to the muscles.
- Increased strength: Pre-workout supplements with creatine or citrulline may increase strength and power output during exercise.
What to look for in pre-workout
Look for pre-workouts with research-backed ingredients in clinically effective dosages. These could include:
- 3 to 6 grams of L-citrulline (or 6 to 8 grams of citrulline malate)
- 4 to 6 grams of beta-alanine
- 2.5 grams of betaine anhydrous
Search for products that are third-party tested to ensure quality and safety. The Food and Drug Administration (FDA) doesn’t regulate supplements. Third-party testing helps to ensure that pre-workouts don’t contain potentially harmful levels of heavy metals or other contaminants.
Check out customer reviews on the product website to gather insights into taste and solubility. Explore opinions on specific flavors, the product’s texture, and overall user experience.
Finally, take into account the cost per serving when deciding on the ideal pre-workout. The pricing of a supplement can be deceptive, so it’s crucial to account for the number of servings per container. Select a supplement that fits within your budget, ensuring a convenient option for repeat orders.
What does pre-workout do?
Pre-workout is a multi-ingredient supplement you take before your workout to enhance energy, focus, and muscle-building. ( 46 ) Ingredients in a pre-workout vary, but many contain caffeine, a well-known stimulant that supports energy and focus. ( 46 )
Other ingredients you may find in a pre-workout include:
- Beta-alanine: A precursor to carnosine, which is a dipeptide that reduces lactic acid buildup in the muscles and may lower muscle fatigue. ( 2 )
- L-citrulline: An amino acid that promotes nitric oxide production, and may improve blood flow and muscle function during a workout. ( 1 )
- Creatine: A naturally occuring amino acid that supports muscle energy production and may improve exercise intensity and performance. ( 46 )
- Betaine: A naturally occurring chemical that may increase creatine production and blood nitric oxide levels to aid in exercise performance. ( 46 )
The supplements may also contain amino acids like taurine for support endurance and branch-chain amino acids (BCAAs) to aid in muscle protein synthesis. ( 46 ) However, the scientific evidence that amino acids in pre-workout supplements offer any ergogenic benefits is limited. ( 46 )
When is the best time to take pre-workout?
The best time to take pre-workout is before your workout. Read the label of your supplement for timing guidance; most labels will suggest taking the pre-workout 20-60 minutes before exercising. ( 46 )
Other pre-workouts we reviewed
We liked many of the pre-workout supplements we tested, but not all made our list of top choices. Some other options we liked include EBOOST’s POW Pre-Workout, Kaged’s Pre-Kaged Sport, and BPI Sport’s 1MR OG Pre-Workout Formula. While these options could be a good fit depending on your goal, a lack of third-party testing and general clinical dosages were the main issues we found.
FAQs
Which pre-workout gives the best pump?
We recommend Transparent Labs BULK for the best pump. BULK contains 8 grams of citrulline malate, a nitric oxide precursor that can improve muscle blood flow efficiency, which may give you a noticeable pump.
What is the most effective pre-workout?
We recommend PRE JYM for a pre-workout that delivers the best effects. PRE JYM contains 300 milligrams of caffeine, so you’ll likely feel energized and focused. It also includes nootropics for improved cognitive function and creatine and BCAAs for muscle building.
Are there healthy pre-workouts?
Consider pre-workouts made with natural ingredients, like Legion Athletics Pulse , when looking for healthy pre-workouts. Legion Athletics Pulse doesn’t contain any artificial sweeteners, dyes, or flavors. Also, consult your doctor before starting a pre-workout. You may need to avoid certain supplements depending on your medical conditions and prescribed medications.
Should I take pre-workout every day?
For many, it’s safe to take pre-workout daily as long as it contains safe amounts of each ingredient and isn’t contaminated with harmful amounts of heavy metals or other contaminants. Choosing a third-party tested product is the best way to ensure the safety of a supplement. If you have a medical condition or are taking prescription medications, check with your doctor before starting a new daily supplement.
Does pre-workout really help?
Preliminary evidence suggests that pre-workout does really help. ( 46 ) The supplement type may support muscle endurance and mood, but the effectiveness of a pre-workout depends on the ingredients used and dose. ( 46 ) Though promising, more research is needed to determine long-term efficacy and safety of pre-workout supplements.
Is pre-workout better than caffeine?
Currently, there’s not enough research to definitively say that pre-workout is better than caffeine. ( 46 , 47 ) Numerous studies indicate that caffeine by itself supports exercise endurance, strength, and performance. ( 43 ) Though pre-workout also seems to support exercise, the variability of ingredients in formulas makes it difficult to determine if the benefits are due to the caffeine, the other ingredients, or both. ( 46 )
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any diseases.
Our experts
Robert Wildman, Phd, RD, LD, CISSN, FISSN
Dr Robert Wildman (“Dr Rob”) is a globally renowned exercise, fitness, and nutrition expert who speaks around the world on exercise and sport nutrition, and continues to work with professional and elite athletes to achieve their highest level of performance as well as health and fitness. Rob received his PhD from The Ohio State University, earned his MS from Florida State University, and earned his BS from the University of Pittsburgh. He is also a registered and licensed dietitian.
Amanda Dvorak
Amanda has been writing and editing fitness and nutrition content since 2021, with a heavy focus on equipment and supplement reviews. She has contributed to BarBend, Breaking Muscle, FeastGood, and PowerliftingTechnique. While she currently does CrossFit out of her garage gym, Amanda also enjoys lifting heavy weights, running, cycling, and hiking. She is studying for her personal trainer certification through the International Sports Sciences Association (ISSA).
Stephen Sheehan, CPT
Stephen is an ISSA-certified personal trainer and nutritionist who uses his fitness expertise to review products for Fortune Recommends™. A two-time University of Florida graduate, he has a diverse writing and editing background that’s primarily focused on sports, health and fitness, and e-commerce content. His work has been featured in Runner’s World and Keto Magazine, as well as Bulletproof, Breaking Muscle, and YouFit Gyms.
Jessica Coulon
Jessica is a contributing editor and writer for Fortune Recommends™ who specializes in fitness, health, nutrition, and science content. Previously, she was an editor for Popular Mechanics and Bicycling, where she covered pro cycling news, wrote how-to guides, and tested all the latest and greatest bike gear. She was also a contributor for Runner’s World. These days, you can often find her skiing or riding her mountain bike, and racing with the F1RE female enduro team.
Perry Nix, MS, RD, LD
Fortune Recommends Nutrition Author
About Author
Perry Nix, MS, RD, LD, is a registered dietitian and freelance nutrition writer who resides in Texas with her two rambunctious boys and firefighter husband. She earned her degrees from Texas Tech University and has since gained experience in public health, corporate wellness, and clinical settings. Today, she enjoys writing about sports nutrition and teaching others how to properly fuel for an active, adventurous, and balanced lifestyle.