Bioderma Hydrabio Serum Moisturizing Concentrate is an intensive hydrating serum for dehydrated and sensitive skin with immediate results. Pleasant fresh perfume. The delicate light texture of Hydrabio serum gives the skin a feeling of freshness and softness. Bioderma Hydrabio Serum Moisturizing Concentrate has the active substance Aquagenium, which stimulates the ability of skin cells in deeper layers to form and retain moisture on their surface, which is essential for the skin's balance. Use Hydrabio serum in the morning and evening on cleansed skin alone or before applying the cream.