Concentrated serum with pure hyaluronic acid (1.5%) and niacinamide (6%) to act on the causes of aging.  The skin is firmer, wrinkles are reduced.    Acts on the cause of aging*    94% natural ingredients    Over the years everything accelerates. Aged cells spread and the skin functions at a slow rate. Avène dermatological laboratories created the Hyaluron Activ B3 serum, highly concentrated in pure hyaluronic acid (1.5%: high and low molecular weight) and niacinamide (6%) to act on the cause of aging and prolong the life of cells *. Thanks to its minimalist composition containing only 8 ingredients, this serum offers a firming effect after 15 days of use.