An ecobiological response for sensitive and sensitized skin, DEFENSIVE TECHNOLOGY together with fucose polymer gives the skin the power to defend itself against chronic inflammation. This serum acts on the causes of sensitivity and aging, stopping the vicious cycle responsible for the exacerbation of sensitive skin and skin aging. - Protective action: carnosine and vitamin E have powerful antioxidant activity to protect the skin from attacks. - Reinforcing action: tetrapeptide-10 stimulates the production of components involved in protecting the epidermis. Together with the fucose polymer, these active ingredients significantly improve the skin's resistance. - Double soothing action: red sage polyphenols limit skin hyperreactivity and inflammation induced by pollution (neurogenic and induced inflammation). Fucose polymer completes the action for immediate and long-term action to prevent chronic inflammation Developed to help the skin manage its sensitivity on a daily basis, Sensibio Defensive Serum helps stop premature aging. The main active ingredients in the composition of Bioderma Sensibio Defensive Serum are: Hyaluronic acid: Filling wrinkles and extra hydration, for comfortable skin. Vitamin E: Antioxidant properties, prevents premature aging. Carnosine : Protects and recovers the skin's barrier function. Clean and dry your face and neck beforehand. Once the skin is clean of dirt and impurities. Apply Bioderma Sensibio Defensive Serum with a light massage, spreading the product from the inside out of the face, taking it towards the neck.