Genexc Serum is a revolutionary formula featuring our proprietary combination of Extremozymes®, which are clinically proven to help protect, revitalize, and enhance the foundation of healthy skin, while supporting multi-level protection and long-term visible improvements. Genexc Serum contains 20% of our exclusive Vitamin C (L-ascorbic acid); which is formulated with a powerful combination of botanically sourced enzymes, antioxidants, and fruit acids sourced from both land and sea. These cutting-edge ingredients work synergistically to provide the most scientifically-advanced, clinically proven benefits; improving the appearance of fine lines and wrinkles and evening the complexion, resulting in a more youthful, glowing appearance. 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 iS Clinical 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. | iS Clinical GeneXC Serum (, 0. 5 oz | Dermstore