This new innovative serum, Serioxyl Denser Hair by L'Oréal Professionnel, is a scalp solution for denser looking hair which can be applied directly to the scalp to boost hair density. Formulated with Stemoxydine 5%, a molecule born of ten year's research and Resveratrol, a polyphenol derived from anti-oxidant skincare solutions. With pipette application, the treatment is quick and accurate and has been proven to boost the hair density in as little as 6 weeks * Hair become stronger while increasing density and becoming visibly thicker.