This two-in-one daily serum includes high-potency vitamin C plus SPF 40 to help visibly brighten skin and prevent the appearance of dark spots. Vitamin C breaks down in the sun, so it's only truly effective when worn with SPF! This first-of-its-kind formula combines vitamin C with SPF, niacinamide and hyaluronic acid in a hydrating, oil-free formula that leaves a lit-from-within finish. Plus, it provides broad spectrum protection from UV rays and infrared radiation, and it helps filter blue light, too! It's your daily dose of skincare for visibly brighter, healthy-looking skin.