Bioderma Hydrabio Moisturising Mask is the first moisturising soft mask with Aquagenium. This complex teaches the skin again to biologically revive its natural hydration capacities and to retain its balance. This patented organic complex make skin able to create in-depth the necessary level of water for optimal hydration, and to retain it at the surface of skin. DAF patented natural complex increases tolerance threshold of the skin. Durably moisturised, it gains comfort, suppleness and radiance.