This product has been scientifically developed to add gloss and life to damaged, treated, porous or dry hair. It also protects hair from harmful elements such as: sunlight, heat, chlorine, salt water, etc. Formula innovadora que hidrata, protege y actua como mascarilla, en un efecto 2+1 (Salerm 21), segun su modo de aplicacion. Su desarrollo cientifico a base de proteinas de seda y provitamina B5, confiere brillo y vida a los cabellos. Salerm 21 B5 Silk Protein 6.9oz "Pack of 2". The small size proteins, reach the core and repair hair deeply. Protects hair from harmful elements such as sunlight, heat, chlorine, saltwater, etc. To add gloss and life to damaged, treated, porous or dry hair.