Bioderma Hydrabio Hyalu+ Hydrating Face Serum is designed for dehydrated skin, targeting the slowdown of Hyaluronic Acid synthesis that occurs from age 20. This serum intensely and lastingly rehydrates the skin, while also addressing the first signs of aging. Its HYALU+ technology works to re-educate the skin's natural hydration mechanisms and improve water retention, essential for skin balance. It helps strengthen and protect the skin's internal Hyaluronic Acid reserves. The low molecular weight Hyaluronic Acid contributes to firmer and more toned skin, while Niacinamide reinforces the skin's protective barrier. This serum features a light, quickly absorbed gel texture and is formulated for very good tolerance, tested under dermatological control and on sensitive skin. Clinical results show instant hydration increase by 60% within 30 minutes and 24-hour hydration. After 28 days of use, 94% of users experienced plumper skin, and a significant reduction in visible signs of aging was observed.