Collistar Special Perfect Hair Regenerating Long-Lasting Colour Mask, 200 ml, Hair Masks for Women, The Collistar Special Perfect Hair Regenerating Long-Lasting Colour Mask 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: goes deep into the hair fibre extends the life of hair dye restores hair’s natural, healthy appearance How to use: Wash with shampoo, then apply to damp hair. Leave to act as instructed on the packaging, then rinse thoroughly.