What it is:A smoothing liquid makeup base for an ethereal complexion.What it does:For skin that seems lit from within, apply Guerlain Meteorites Light-Diffusing Perfecting Primer to clean, moisturized skin as an essential first step in any makeup routine. In one step, this extraordinary primer perfects the complexion, and can be used before makeup or on its own.What else you need to know:This gel formula is the first makeup base with pearls of light; it contains an exclusive, color-control base to camouflage blemishes and discoloration, and pearlescent extracts to capture and reflect light, blurring the appearance of fine lines without adding shine.