At first glance, those pastel-hued tubes you see lining the shelves of your local drugstore might seem confusing — and you might not think they’re a must-have for your beauty stash. But here’s why we disagree: Color correctors are key when concealing common skin issues like dark circles, sallowness and hyperpigmentation. Skin tone-matching concealers don’t always do the job when it comes to covering these effectively, but when paired with the right color corrector, makeup magic happens. Each shade corresponds with another color (they’re opposite each other on the color wheel) that it cancels out. Sound confusing? Pick a shade, and we’ll explain.  GreenWhat it Does: Neutralizes rednessWorks Best For: Acne breakouts, rosacea, birthmarks, rashes or skin irritationsHow to Apply: Use a small concealer brush to blend the color-corrector directly on top of the mark, then gently feather the color out to the sides to blend it in and around. We recommend the Urban Decay Cosmetics Skin Color Correcting Fluid, a liquid concealer product that’s lightweight and works instantly. YellowWhat it Does: Hides blue or purple tonesWorks Best For: Bruises, purple toned dark circles, broken capillaries or age spotsHow to Apply: Dip a cosmetic sponge into the color, then gently tap and blend it over the area. Start with a light layer and add more as needed until your blemishes are covered. Our favorite yellow spot concealer is definitely the Lancôme Teint Idole Ultra Wear Camouflage Creator — a full coverage corrector that doesn’t crease.PurpleWhat it Does: Eliminates unwanted yellow undertonesWorks Best For: Dark spots, old bruises or areas of dull complexionHow to Apply: Use a concealer brush or a makeup sponge to smooth the cream over the area. Then use your finger to blend the edges into your skin so the effect is seamless. We love the cult-fave L.A.Girl HD Pro Concealer for dark spots — it’s creamy, easy to blend, and wears well underneath face makeup.PeachWhat it Does: Masks signs of fatigueWorks Best For: Dark circles, sallow lifeless skinHow to Apply: Use your ring finger to gently tap and smooth the cream over the area. This shade is ideal for beauty junkies with lighter skin tones. Peach correctors are ideal for babes with lighter skin tones and work well to conceal dark circles. If you’re still on the hunt for your perfect peach shade, try the NYX Color Correcting Palette, a 6 shade palette that lets you tweak different shades to get your perfect match. BlueWhat it Does: Neutralizes orange discolorationWorks Best For: Sun spots or pigmentations, self-tanner stains/streaksHow to Apply: Use a foundation brush to blend a thin layer of the blue color on. If that doesn’t do the trick, apply a second layer, feathering it out to the sides. If needed, use your finger to blend the edges. NYX Color Correcting Liquid Primer is perfect for the job, delivering a subtle lit-from-within glow and a flawless finish.  Red/OrangeWhat it Does: Conceals discoloration, dark circles and hyperpigmentation on deep skin tonesWorks Best For: Dark spots, sun damage, acne scarringHow to Apply: Apply anywhere there is unevenness in skin tone and blend out. When choosing an orange or red toned corrector, it’s important to find a shade that isn’t too bright. We recommend a concealer palette like Urban Decay Naked Skin Shapeshifter, a double-sided palette that has powders on one side and cream products on the other.