L'Oréal Professionnel Serioxyl Advanced Shampoo for clarifying and thickening fine hair

[Thin hair]: It is a vicious cycle you want to get out of. [Hair thickening]: Gently purifies the hair and restores its density. The hair becomes more dense and radiant. [Powerful active ingredients]: Rich in magnesium*, helps to purify the hair roots from buildup that can affect healthy hair growth. *Magnesium salt. [Dermatologist approved]: Made by hair care professionals, approved by dermatologists. [Scientifically proven effectiveness]: After just one use, an immediate increase of 22% in hair density, lasting 24 hours*.