This Biotin and Keratin hair mask is the most intensive, intensely hydrating treatment for brittle and dry hair. During the application, your hair is deeply hydrated and nourished with biotin and keratin for maximum strength, shine and manageability. It helps restore color-treated, damaged or split ends. When used regularly, it helps reduce breakage and split ends. This hair mask is made with the highest quality of ingredients that are essential for healthy hair. It contains biotin, keratin and collagen which are known to be some of the most effective ingredients in a hair care product.