Serum-powered Brightening Concealer. Revolution's first-ever weightless, radiant serum under eye brightener with a cooling metal applicator is here - enriched with a skin-loving formula to hydrate and revive your under eyes. Available in six versatile shades, this lightweight, fluid formula glides on for a youthful, radiant look. Wear alone for a brightened look or under concealer for additional coverage. The Skin Silk Radiant Serum Under Eye Brightener & Concealer is housed in a luxe frosted component with a cooling metal applicator.