Other than sun damage, nothing accelerates skin aging like water loss. For skin that needs moisture, there isn't a more potent ingredient than Hyaluronic Acid. This high-potency serum plumps up skin with moisture to reduce lines or wrinkles. Aestheticians have stated this serum is the closest a cosmetic comes to a dermatologist injection of Restylane (hyaluronic acid). Excellent by itself or under other creams.