Hydrabio serum \ \ adults, teenagers \ \ benefits \ \ •+176% (1) immediate hydration and 72 hours of effectiveness (2) , thanks to the patented aquagenium+* technology and hyaluronic acid \ •proven effectiveness in real conditions (pollution, stress, temperature changes) (3) \ •reinforces the skin barrier protection \ extremely cool gel texture – absorbed immediately – non-sticky – non-greasy – very good base for make-up \ very good skin tolerance. does not cause blackheads – suitable for all skin types \ \ \ \ inspired by bioderma's eco-biological approach, hydrabio sérum helps dehydrated skin restore its natural hydration mechanisms and maintain its long-term balance. \ its formula offers a dual action, targeting both the causes and the consequences of dehydration: \ 1. reactivates natural hydration mechanisms \ the patented aquagenium+* technology helps stimulate aquaporins to restore hydration flow, while hyaluronic acid and glycerin help the skin capture and retain water. \ 2. strengthens the skin barrier \ niacinamide promotes lipid synthesis to strengthen the skin's protective function. a prebiotic sugar supports the microbiome, which is essential for long-term hydration balance. \ hydrated and strengthened, the skin regains comfort, radiance and the ability to face daily challenges. \ \ \ \ morning and/or evening - 7 days a week \ \ \ step 1cleanse your skin ideally with the hydrabio cleanser. \ step 2use before your daily skincare product. \ step 3apply morning and/or evening to face, neck and décolleté. \ step 4gently massage until absorbed. \ \