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, barely-there finish. Just a few drops are enough to instantly enhance the complexion, while a subtle dose of non-greasy oils creates a completely new feel. The result: an instant fresh effect and a silky smooth application. Day after day, the complexion is natural and radiant