Crack the Color Code
Concealers operate on the principle of neutralizing the enemy. For example, if your skin's flaw is red (like a pimple), you can camouflage it with a concealer in the counteracting color, green. "It's the same basic theory that artists use," says celebrity makeup artist Joanna Schlip. You cancel out one color (your flaw) by using the color (a concealer) that's directly opposite on the color wheel. Typically, the colors representing skin flaws are on the left half of the wheel, and the solutions are on the right (yellow can be either).
Use mint green concealer to combat redness (like pimples, rosacea and rough spots).
Use shades that are yellow- or orange-based to help offset purple and blue (like dark undereye circles, broken capillaries or visible veins).
Use lilac or pale blue to help even out yellow (like a bruise or a birthmark).
Key Spots for Concealer
Wrinkles and fine lines: To soften their appearance, apply a creamy, lightweight concealer. And be frugal, or you'll highlight crepey skin.
Dark circles and puffiness: Undereye skin is super-thin, so pat concealer on with your ring finger (it's the weakest digit).
Broken capillaries: These tend to be in highly visible areas, so use the lightest-weight concealer you can - try a wand or a tube.
Blemishes: To get the concealer directly on the pimple or red spot (and not on the surrounding skin), use a precise applicator, like a pencil, tiny brush or sponge.
Unplucked brows and veins: Put concealer all over lids - it will also keep eyeshadow in place.