The Acidic Color Gloss Shampoo gently cleanses the scalp and hair and protects against color loss between colorings. The pH-balancing formula, enriched with a gloss complex, rebalances the hair after coloring and ensures long-lasting color brilliance for up to 32 washes. For healthy-looking hair with shine like never before!Application: Spread the shampoo in your hands and apply to the scalp and hairline. Massage thoroughly into the scalp until it foams up. Rinse out. Follow with Acidic Color Gloss Conditioner or continue with the treatment once a week.