DO YOU HAVE NATURAL, DYED OR LIGHT BLOND HAIR? Their color fades and the fibers deteriorate, so they require intensive regeneration and special protection against unwanted yellow tones. To regain a healthy look, try Gliss Blonde Hair Perfector Purple Shampoo: - deeply regenerates damaged hair - neutralizes unwanted yellow and copper tones, giving the hair a cool shade - visibly improves the quality of the hair and gives it shine