A serum that retrains the skin to moisturize itself. Pollution, stress, cold weather. The list of everyday elements disrupting skin cell activity runs long and causes dehydrated, tight, and uncomfortable skin. Developed in the BIODERMA Research laboratories, the Aquagenium biological patent found in Hydrabio Legere retrains the skin to activate its natural moisturizing capacities. The secret: the serum stimulates the production of aquaporins, water channels in the skin, and retain the water it needs to be balanced. The result: smooth, radiant skin. - Instant and lasting moisturizing effect. - Smooth, extra-fresh texture. - Tailored to all skin types, alone or combined with a treatment. - Allergen-free fragrance.- Non-comedogenic.- Hypoallergenic. - 40 ml / 1.3 oz.