Yves Saint Laurent

I generally so loathe any kind of sparkle or shimmer on the lips, but this is the one product I make a happy exception for. It's unprecedented in its gorgeousness and it stays on forever unless you physically take a scrub or makeup remover to it. I promise it will not go anywhere, even when the rest of you is melting, and the shimmer particles are so tiny that they're invisible until they reflect light (which they do, beautifully). My favorite (non-red) shades are Encre Rose (shown) and Corail Aquatique. [Rouge Pur Couture Vernis À Lèvres Glossy Stain, $32, Sephora]