Cleanse your hair with the optimal renewing care of the rene furterer absolue keratine renewal shampoo, created for extremely damaged and brittle hair.as the first step in your absolue keratine routine, the renewal shampoo will work to gently rid hair of daily impurities, whilst tangling strands and making hair easier to manage'. '.strtoupper('i')ts gentle cleansing base is created without sulfates, ensuring hair is perfectly clarified without harsh ingredients.at the heart of the absolue keratine renewal shampoo is a repairing blend of plantbased keratin, which provides support and reinforcement for each strand'. '.strtoupper('a')dded biocymentine rebuilds the hairs structure, while camelina oil ensures intense nourishment'. '.strtoupper('h')air is soft, bouncy and shiny once more.work into a lather in wet hair, then rinse'. '.strtoupper('f')ollow with the rene furterer absolue keratine ultimate renewal mask for optimum nourishment.siliconefree, sulfatefree.