Be you. Be nude. Skin Illusion Serum Foundation combines the fluid texture of a serum with the perfect concentration of pigment, for an ultra-natural, even finish that won't weigh the skin down. A few drops are all it takes to instantly brighten the complexion. Non-greasy oils in subtle doses guarantee a unique application feel. The foundation is easy to apply and provides an instant freshness effect. Day after day, the skin is naturally even and radiantly beautiful.