L"oreal Serie Expert Powerdose Color is a treatment for colored hair. Powderdose Color is an instant personalised technical treatment for professional use only. A powerful, rinse-out repair treatment with long-lasting results to restore and prolong the colour of the hair. Coloured hair is instantly detangled. Easy to style, it regains a soft, silky, natural feel. Seals in color and preserves vibrant shine of color-treated hair.Powerdose treatments target the cuticle and hair"s surface (Zones B & A) with professional concentrations of Bio-Mimetic Ceramide coupled with dedicated technologies for specific haircare needs. These treatments instantaneously provide deep condition at the hair"s cuticle and surface areas for intense shine.