As we age, our skin’s own production of Hyaluronic Acid decreases causing the skin to form wrinkles and look older. Eucerin Hyaluron-Filler Day SPF 15 Refill with 3x Effect formula counteracts this process: 1. Fills: High and low molecular acid, moisturizes and plumps up wrinkles. 2. Stimulates: The anti-oxidant, Saponin, activates the skin’s own Hyaluronic Acid production by up to 256% and protects the skin from free radicals. 3. Defends: Enoxolone decreases the degradation rate of Hyaluronic-Acid by more than 50%. Eucerin Hyaluron-Filler Day SPF 15 addresses the first signs of ageing in dry skin. It noticeably plumps up fine lines and even deep wrinkles for a rejuvenated look. It effectively prevents UV-induced photoaging (premature skin ageing caused by the sun), the deepening of wrinkles, and protects the skin from free radicals. Eucerin’s unique blend of high and low molecular Hyaluronic Acid, Glycine Saponin and Enoxolone delivers a targeted approach to visibly plumping even deep wrinkles. High molecular Hyaluronic Acid improves hydration and smooths the outermost layers of skin while low molecular Hyaluronic Acid, which is 40 times smaller1, penetrates further into the epidermal skin layers where deeper wrinkles originate. The anti-oxidant, Glycine Saponin, supports Hyaluronic Acid production in the dermal layer where the deepest wrinkles are formed and protects from free radicals. Enoxolone protects the skin’s own Hyaluron from degradation. 1 - Compared to the high molecular Hyaluronic Acid also used in the formula.