HELPS REPLUMP the visible appearance of the skin after just 4 hours** HELPS REDUCES the appearance of wrinkles in as little as 2 weeks** *in vitro test, thanks to niacinamide.**self-evaluation, 128 users.. Avene dermatological laboratories have 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 and signs of ageing. Thanks to its minimalist formula containing only 8 ingredients, this serum provides a tightening effect after 15 days of use. After 15 days, the skin looks plumped, feels firmer and more elastic: true efficiency in its purest form. Tested on sensitive skin, this fragrance-free product is suitable for all areas of the face, even the eye area. 94% of ingredients of natural origin. . Immediate TIGHTENING EFFECT thanks to its very high concentration of hyaluronic acid (1. 5%). HELPS REPLUMP the visible appearance of the skin after just 4 hours. HELPS REDUCES the appearan