Hydraderm Hyal, is formulated with high, low and very low molecular weight hyaluronic acid (liposome) allowing deep moisturizing of the skin at different levels plus the surface film-forming effect. Prevention and treatment of aging. Dry and dehydrated skin, including the most sensitive, due to any cause both exogenous (dry weather, winter, detergents) and endogenous (aging, atopy). Aesthetic treatments induced dryness (peeling, laser, microdermabrasion) or dermatological (corticosteroids, retinoids).