The hydrating serum infuses the skin with water, plumps it and hydrates it for 24 hours. This expert formula targets the two key mechanisms of hydration: it captures and retains water at the heart of the epidermis while strengthening the skin barrier to limit water loss and preserve the skin's water balance throughout the day. Enriched with a complex of high and medium molecular weight hyaluronic acids, this serum forms a protective film on the surface of the skin to limit water loss and fill the space between cells, ensuring visibly more hydrated and plumped skin. Fucus extract, a brown algae rich in trace elements, revitalizes and energizes the skin by strengthening its natural hydration.The hydrating serum contains 5% niacinamide (vitamin B3), it acts as a multi-corrector, reducing redness, tightening pores and improving skin texture. Combined with panthenol (provitamin B5), known for its restorative and soothing properties, this combination strengthens the skin barrier and protects the skin from external aggressions.Its fresh and light texture penetrates quickly without a sticky effect.