Rehydrates – Fills – Illuminates. Intense plumping care. Formulated with 96% ingredients of natural origin, the Luminosity Rehydrating Serum is a true infusion of hydration for the skin. Continuously hydrated, the skin is plump, flexible and luminous. Formulated for all skin types, even sensitive ones. Technology: The result of Lierac Research on the skin's hydration mechanisms, the new Hydragenist range is enriched with double action technology: - A long-term moisturizing action thanks to a unique rehydrating ferment that lastingly enhances the skin's natural hydration mechanisms. - An immediate moisturizing action, thanks to high molecular weight hyaluronic acid that provides comfort and luminosity to all skins, even the most dehydrated. How to use: Apply morning and night to the face and neck before the cream.