The legendary Double Serum is now available with a lightweight, weightless texture that delivers proven results on visible signs of skin aging. Developed by Clarins research, the unique double formula combines 21 powerful plant extracts that help reactivate the skin's 5 vital functions - regeneration, nourishment, oxygenation, hydration, and protection - while addressing signs of aging. Its dual texture of volatile oil and melting gel leaves an immediate natural finish and a pleasant scent with fruity, floral, fresh, and refined notes. The two interlocking bottles contain the two formulas: a technological masterpiece designed with environmental considerations, prioritizing sustainable materials and minimizing waste.