This fast acting, ultra-targeted serum combines a potent complex of actives and an optimal dosage of 10% stabilized Vitamin C to address the visible effects of UV activated hyperpigmentation, age spots and to reduce skin tone imperfections. Works deeper to help protect elasticity, stimulate collagen synthesis and create a shield to protect against environmental aggressors resulting in a strengthened, refined and brightened skin tone. Use to restore a luminous complexion. 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 MZ Skin 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. | MZ Skin Brighten & Perfect 10% Vitamin C Corrective Serum, 30 ml | Dermstore