Intensively reconstruct your hair working from the inside out with this Kerasilk hair repair mask. Designed for stressed and damaged hair, this mask is formulated with keratin and Hyaloveil to actively interact with the structure of your strands. It's deeply penetrating and delivers long lasting hydration and protection. For healthy, shiny results simply apply to wet, towel dried hair distributing evenly. Leave in for 5-10 minutes and rinse thoroughly.