The revolutionary new product range acts from the very first symptoms thus providing your hair with more density and more thickness. Resulting from L’Oréal Advanced Research, Serioxyl offers a personalized answer following a diagnosis by the expert L’Oréal Professionnel hairdressers. Serioxyl addresses hair density and thickness concerns of both men and women thanks to tailored in-salon and at-home treatments formulated with highly-concentrated ingredients catering to every aspects of thinning hair.