COLLISTAR Pure Actives Keratin + Hyaluronic Acid Reconstructive Replumping Mask - an innovative Collistar product that can be used in two ways: - After-shampoo mask to be used as the second phase of the treatment. - Pre-shampoo pack with an even more intensely nourishing effect, recommended if hair is particularly parched and brittle. It is creamy and easy to massage into hair, absorbing instantly and allowing its pure and concentrated active ingredients to penetrate inside the hair. It works quickly and effectively, repairing and replumping the entire hair structure. From the very first time it is used, hair is visibly stronger and more full of body, smoother and thicker to the touch, and more manageable and easier to comb.