LA BASE PRO Perfecting Makeup Primer This amazing oil-free makeup base creates a smooth, radiant, and long-lasting canvas for a polished look. Exclusive Lancôme Elasto-Smooth technology refines skin's texture and diffuses light to visibly reduce imperfections, creating a satin-soft finish. Makeup glides on seamlessly. Color stays more true and vibrant for an air-brushed look all day.