The PCA Skin C-Quench Antioxidant Serum is an effective anti-aging serum that combines advanced ingredients to minimize the appearance of fine lines and wrinkles, while also hydrating and strengthening the skin. The Serum is formulated with Vitamin C, an antioxidant that minimizes the appearance of fine lines and wrinkles while promoting and even skin tone, Hyaluronic Acid that holds 1,000 times its weight in water, protecting, hydrating and strengthening the skin, and Ergothioneine, an antioxidant that supports the capabilities of other antioxidants. The multiple antioxidants in the serum offer superior protection from harmful UV rays and other external pollutants that can cause signs of premature aging, to leave the skin protected and looking bright, healthy, and youthful.