The L’Oréal Professionnel Serié Expert Advanced Denser Hair Serum is a powerful formula that promotes the illusion of thicker-looking hair. Forming a part of the Serioxyl collection, the serum multiplies the appearance of strands, encouraging a visibly full-bodied finish. The formula is powered by potent actives stemoxydine and resveratrol, designed to protect the scalp in order to promote optimal conditions for healthy hair growth. Lightweight and volumising, the serum leaves hair feeling stronger. Equipped with an easy to use spray applicator.