After 4 weeks of use, the effects of HYDRA BEAUTY Sérum are visible: Skin is more hydrated: +81% Skin is more luminous: +23% Clinical study by a dermatologist (n=29) HYDRA BEAUTY Sérum boosts the hydrating effectiveness of CHANEL skincare and HYDRA BEAUTY skincare. After 30 minutes: HYDRATION (HYDRA BEAUTY CRÈME on its own): +79% HYDRATION BOOSTER EFFECT (HYDRA BEAUTY SÉRUM + HYDRA BEAUTY CRÈME): +92% Instrumental test (n=20) *International patent application. **PFA: PolyFractioning of Active Ingredients. A specific process developed by CHANEL that allows for the creation of ultra-pure cosmetic ingredients. At the heart of the formula: Camellia Alba PFA,* extracted from camellia flower, hydrates skin and helps maintain optimal moisture levels. HYDRA BEAUTY Sérum also benefits from the antioxidant powers of Blue Ginger PFA,* which strengthens the cellular self-defence system, as well as the immediate plumping effect of new-generation hyaluronic acid. * PFA: PolyFractioning of Active Ingredients. A specific process developed by CHANEL that allows for the creation of ultra-pure cosmetic ingredients. Dermatologist-tested. Non-comedogenic.