Dubbed liquid gold! Coveted by beauty experts around the globe. Skinceuticals C E Ferulic Vitamn C serum is a revolutionary antioxidant combination that delivers advanced environmental protection against photoaging by neutralizing free radicals that cause accelerated signs of aging. Provides advanced environmental protection against damaging free radicals induced by UVA, UVB, and infrared radiation A Increases firmness and replenishes lipids to visibly reduce wrinkles Once absorbed, this serum can’t be washed or rubbed off. It remains effective for a minimum of 72 hours, making it an excellent addition to sunscreen. Combination antioxidant treatment containing 15% L-ascorbic acid, 1% alpha tocopherol, and 0.5% ferulic acid. This was purchased on Dermstore website. Unopened and unused. I have too many bottles from a Monthly subscribe and save program so I need to give some up. Not an expired product. See code in picture. Retails for $182