- Gentle shampoo for color-treated hair, brings hair to its optimal pH 4.5 level to perfectly freeze color pigments. For long-lasting intense color. Ideal for use in post-color service and home maintenance. Gently yet effectively cleanses colored hair. Tightens and stabilizes the matrix thus keeping the color pigments frozen deep inside the hair. Works to neutralize chemical residues while adjusting hair structure. Prepares hair for the benefits of BC care products. Schwarzkopf's Balancer Technology working with Lactic Acid & Calcium Hydroxide, tightens and stabilizes the matrix at its optimal pH of 4.5 to deeply freeze color pigments inside the hair matrix for ultimate color perfection and anti-fade effect. Apply to wet hair. Massage gently. Leave for 1-2 minutes. Rinse thoroughly and repeat if necessary. Suitable for daily use.