Travel size*1 About 4ml SkinCeuticals Phloretin CF, a natural extract that’s been studied as an anticancer agent, is the newest antioxidant available topically; research has shown it can penetrate the skin and provide significant UV protection. The serum defends against lines, brown spots, and the start of some skin cancers.” SkinCeuticals’ new breakthrough antioxidant named ‘Best Serum’ by Allure Magazine’s Best of Beauty Awards