Vitamin C Dark Spot Serum is packed with a powerful blend of 70% fresh green tangerine extract, 4% niacinamide, and arbutin. Green tangerines are potent in antioxidants and have 10x more vitamin C than lemons. Powered by this fruit, our formula improves dark spots and post-acne hyperpigmentation while tackling the formation of new ones that have yet to surface. (Affiliate link)