Revlon Professional Pro You The Keeper Color Care Mask 500ml

An intensive formula that prevents fading. COLOR DEFEND SYSTEM. Formulated with specialist technology that prevents fading.–ANTI-FADING AGENTS:These are substantive to mechanically-damaged surface areas that are more prone to color loss. The inclusion of this type of ingredients aims to create a homogeneous surface that is easily sealed as a result of pH values –LOW PH:These color-safe formulas have an acid pH, which contributes to the closure of the hair cuticle, meaning that color is better retained in the hair fiber. The cuticle layers open and close depending on the pH of the products applied to the hair: · Acid products (pH <7) close and seal the cuticle. · Alkaline (base) products (pH >7 open the cuticle.