Eucerin Hyaluron-Filler + Elasticity 3D Serum is a light and moisturising anti-ageing serum that effectively treats the 3 Dimensions of skin ageing: Age spots: The formula includes Thiamidol. Unique to Eucerin, Thiamidol acts at the root cause of dark spots and is clinically proven to reduce age spots and, when used regularly, helps prevents their re-appearance, Wrinkles: As our skin ages, wrinkles deepen. Our innovative blend of high and low molecular Hyaluronic Acid visibly plumps deep wrinkles. High molecular Hyaluronic Acid works to smooth the external layers of skin while the low molecular Hyaluronic Acid (which is 40 times smaller) penetrates further into the epidermal layers where deeper wrinkles originate and Loss of elasticity: Active ingredient Arctiin is proven to accelerate collagen renewal in skin cells. It works alongside the Hyaluronic Acid in our formula to improve skin elasticity.