A two-in-one daily dose of high potency Vitamin C SPF 40 serum that helps visibly brighten skin AND prevent the two main causes of dark spots: UV & blue light. Vitamin C is only truly effective when worn with SPF. This first-ever hybrid serum combines the power of stable Vitamin C with SPF in a hydrating, oil-free formula with a lit-from-within finish. Its your essential daily dose for visibly brighter, healthy-looking skin.