A serum acclaimed by its fans, designed for daily use to preserve the balance and beauty of the skin, while strengthening its barriers and defenses. In an independent study* conducted over 4 weeks**, 44 women and men aged 18-65 confirmed the following: Up to 44% more hydration Up to 15% less sebum (for volunteers with oily skin) Up to 26% more sebum (for volunteers with dry skin) The skin ph balance test was positive for 100% of the volunteers.