L'Oreal Professionnel Serioxyl Denser Hair Treatment is a professional super serum suitable for both males and females who have very fine or thinning hair, or suffer from hair loss. Formulated with ingredients that have had 25 years of research, Stemoxydine™, plus Resveratrol™ has shown to protect against oxidative stress to ensure it functions correctly. The forumla will leave your hair looking denser and feeling fuller. With pipette application, the hair treatment is quick and accurate.