Boost volume in your hair with this Densifying Treatment for Natural Thinning Hair from the Serioxyl range by L' Oreal Professionnel. Serioxyl is a new range from L Oréal Professionnel with products that contain Stemoxydin, Neohesperidin, Glucoboost, Incell & Intra-cylane to create beautiful hair that looks thicker & denser. The aqua mousse texture ensures hair is lifted from root to tip, for a fuller looking finish. As part of the Serioxyl densifying haircare programme, the Treatment Mousse helps towards giving you visibly thicker & fuller looking hair in an instant. Directions: Apply a walnut-sized amount to the roots of towel-dried hair, & disperse through the lengths & ends.