Soothing plankton extract helps accelerate the skin's natural ability to maintain and repair while potent peptides help smooth fine lines and wrinkles. Light and silky, LightStim PhotoSerum provides powerful antioxidant support and long lasting hydration for an appearance that reflects your skin's inner health. 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 LightStim 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. | LightStim PhotoSerum, 1 oz | Dermstore