puroBIO Cosmetics No Stress, 40 ml, Hair Masks for Women, The puroBIO Cosmetics No Stress hair mask is an essential step in your hair care ritual. Give it a moment to regenerate and it will repay you with vitality and beauty. Characteristics: hair is soft to the touch restores hair’s natural, healthy appearance for both natural and dyed hair Ingredients: vegan product How to use: Wash with shampoo, then apply to damp hair. Leave to act as instructed on the packaging, then rinse thoroughly.