Intensive moisturising and antiaging treatment. Daily facial moisturising. Dehidration caused by dermatological (corticosteroids, retinoids, etc...) and/or cancer (chemo and radiotherapy) treatments. All skin types, even the most sensitive. HIDRADERM HYAL is a direct source of hyaluronic acid, unlike precursors (N-acetyl d-glucosamine and d-glucuronic acid) which require subsequent molecular synthesis. With 3 types of hyaluronic acid for a multilayer moisturising.