Recharge your skin's natural radiance with this dynamic C. E. O. 15% Vitamin C Brightening Serum from Sunday Riley. Crafted with 15% advanced, stable vitamin C, this antioxidant formula works to target dark spots, dullness and signs of aging, revealing firmer and plumper skin. Key Ingredients:Vitamin C (15% THD Ascorbate): features superior visible brightening, clarifying, and antioxidant properties; helps fight the first signs of aging caused by stress, lifestyle, sun, and pollutionPhytosterols Complex: isolated from soybeans and containing at least 40 percent beta-sitosterol, it helps reduce the look of redness and skin sensitivitySaccharide Isomerate Extract: reduces the appearance of pores while reinforcing the skin's natural moisture barrier for smooth, supple textureGlycolic Acid: Provides mild refinement to the skin; maintains the pH of the serum for maximum vitamin C efficacy, while supporting natural cell turnover and glow of the skinTips: For enhanced visible brightening, follow with Good Genes, CEO Protect + Repair Cream or Tidal Brightening Enzyme Water Cream. Dermstore has partnered with Flex to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA). This means you can now use your HSA or FSA debit card to buy Sunday Riley products with pre-tax dollars, resulting in net savings of 30-40%, depending on your tax bracket. Eligible for HSA/FSA with a letter of medical necessity at checkout. From dermatologist-recommended treatments to solutions for chronic skin conditions like acne, eczema, and rosacea, these products are both effective and eligible. | Sunday Riley C. E. O. 15% Vitamin C Brightening Serum, 1 fl. oz | Dermstore