Gently cleanse hair without stripping its colour with pureology hydrate shampoo its moisturising formula will hydrate dry colour treated hair to reveal soft lustrous locks while protecting colour vibrancy surfactants are an essential part of a shampoos cleansing system but many common surfactants known as sulfates can fade colour vibrancy pureology hydrate shampoo is formulated with zerosulfate a mild cleansing system that wont strip hair colour derived from coconut corn and sugar