Every day, pollution, stress, cold weather, etc. disrupt the skin’s cellular activity. As a result, it becomes dehydrated, tight and uncomfortable and loses its radiance. Developed in the BIODERMA Research laboratories, the Aquagenium^™  biological patent found in Hydrabio Tonique retrains the skin to activate its natural moisturising capacities by stimulating the production of aquaporins, water channels in the skin, and retain the water it needs to be balanced.