The Best Smooth technology integrates the restorative power of amino acids with vegetable proteins. It perfectly realigns the hair structure, straightening it and reducing its volume. Enriched with important active ingredients that act directly on the internal part of the hair fiber, promoting resistance, replenishing nutrients, keratin, and essential elements that restore weakened and damaged hair, giving it softness and shine. The Best Smooth contains violet pigment that helps combat yellowish tons and enhances the hair's natural color. Note : This product is for salon use.