Healthy, naturally blond hair is usually very resistant to the light colourations used in shampoos and hair products. However, many people with grey or colour-treated hair worry about the effects tinted shampoos will have on their hair colour or texture. Due to its active ingredient, T/Gel® Therapeutic Shampoo may cause temporary discolouration of blond, bleached or tinted hair. The amber tints in T/Gel® Shampoo for Dry Hair and T/Gel® Shampoo for Greasy Hair will not affect your hair unless it has been lightened to very blond or platinum. You should protect hair colour by always rinsing shampoos from your hair thoroughly. T/Gel® for Sensitive Scalps has no tints.