LIGHTNESS KERATIN HAIR MASK WALNUT: Walnut keratin hair mask treat dry, damaged hair and scalp by balancing moisture and oil levels to promote healthy shiny and texture to hair. HOW TO USE: After shampoo massage exact amount of this hair mask leave it on hair in five minutes rinse thoroughly. CAUTION: For external use only, avoid contact with eyes, if contact occurs rinse well with water use only as directed.