Gestil Green, 250 ml, Hair Masks for Women, The Gestil Green 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: regenerates the hair along its entire length gives hair a brilliant shine strengthens the hair fibre How to use: Wash with shampoo, then apply to damp hair. Leave to act as instructed on the packaging, then rinse thoroughly.