Be you. Be nude. Skin Illusion serum foundation combines the fluidity of a serum with just the right amount of pigment to ensure an ultra-natural, even and a barely-there finish. Just a few drops is enough to instantly enhance the complexion and leave the skin hydrated. The result is an instant fresh effect and a silky smooth application. Day after day, the complexion is natural and radiant. Available in 6 different shades.