Two of our best-selling serums together as a set! A gentle Vitamin A serum with slow-release retinoids gives an all over smoother and more even skin tone paired with a hybrid serum formulated to promote firming looking skin with improved radiance. 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 SENTÉ 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. | SENTÉ Favorite Serums Duo | Dermstore