This Fiberstrong Masque by Matrix Biolage is a deeply nourishing and moisturising treatment which works to strengthen and repair weak, damaged hair. Giving your locks a natural looking shine, this formula is enriched with Bamboo extract to leave hair touchably soft with a salon perfect finish. Ideal for use once or twice a week to achieve optimum results. K.D. Directions of use: After using Biolage Fiberstrong Shampoo, massage into wet hair and leave in 3-5 minutes Rinse Use once or twice weekly in place of Fiberstrong Conditioner In case of contact with eyes, rinse them immediately