A silky gel emulsion, rich in ingredients, that hydrates and creates a smooth canvas for foundation or powder application. It's our best primer to achieve radiant, glowy skin. Illuminating pearlescent powders reflect optic radiance. MAC Prep Prime Natural Radiance is now available in two shades: Radiant Yellow and Radiant Pink to accommodate a range of skin tones. The formula disappears upon application, resulting in a beautiful glow.