Arganology Serum is based on natural cotton and argan oils and rediscovers the original formula of alchemists from the historic Al-Andalus. An exclusive natural beauty secret that leaves hair extraordinarily soft, shiny and smooth with a velvety feel. Quickly absorbed and non-oily Arganology Serum is especially suitable for badly damaged hair in need of a hydrating boost. HOW TO USE. Place a few drops of Arganology Serum in the palm of your hand and smooth over freshly washed hair. Do not rinse. Style as usual.