Revive dry, visibly damaged skin with this biocellulose mask saturated with vitamin C and combined with lactic acid for increased absorption and enhanced performance. Biodegradable, gellike coconut fibers hug skin contours to help lock in hydration, boost radiance, and reduce redness. This mask has been specifically formulated to be used with LED light for synergistic results. 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 Dr Dennis Gross 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. | Dr Dennis Gross Skincare Vitamin C Lactic Biocellulose Brightening Treatment Mask - 4 Applications, 0. 35 oz | Dermstore