L'Oreal Professionnel Serioxyl Kit 1 for Natural, Noticeably Thinning HairNo matter what the cause, having thin hair can be frustrating. LOral Professionnel have come to the rescue with Serioxyl. Using innovative ingredient Stemoxydine, the Serioxyl densifying haircare programme can give you visibly thicker and fuller looking hair in an instant. Set contains: Step 1 Clarifying Shampoo 250ml: A cleansing product, leaving hair looking fuller and thicker whilst protecting your colour. To use: Apply evenly to wet hair and rinse