Spotted: your summer skin booster 💧 Face serums are often able to hydrate more effectively than heavy creams since they are able to penetrate the skin to hydrate on the deepest level. Unlike other serums, though, REFLEKT 2 Collagen Boost Vitamin C Serum delivers multiple benefits in one product: noticeably brightening, deeply hydrating, and gently exfoliating. In fewer words, it's a summer essential.