Hydrogen Peroxide was discovered by French Chemist J.L.Thenard in 1818. Large amounts of highly concentrated solutions of peroxide are required for commercial use. Hydrogen peroxide cannot be simply concentrated by distillation as it decomposes...
Developer has always taken a 2nd seat to its big brother HAIR COLOR in this whole process, when actually it is just AS important as! I wanted to add a little something to this previous post....a lot of you think that 40 Volume is stronger than 20 Volume .If you look at the ingredient label on a 10 Volume and on a 40 Volume they both will say the exact same thing : H2O2 or hydrogen Peroxide. What is different in these various developers is "time" not strength. To explain that further check…