"Mix together a tablespoon of coarse sugar with your regular shampoo," says Fusco (she recommends Clear Scalp & Hair Nourishing Shampoo, $7.49). This gentle exfoliant won't leave a residue or dull your hair color, and it rinses out easily, making it a solid option for all hair types.

Dessange Paris Balancing Pre-Shampoo Mask, $11.99

See ya, greasy hair. This pre-shampoo treatment is inspired by the personalized scalp treatment at the brand's flagship salon on the Champs-Elysees, and it uses clay to purify the scalp and suck up excess oil while removing acne-causing toxins. You apply it to dry hair with the included applicator, and let it work its magic for five to 10 minutes before rinsing. French-girl hair for a bargain price -- I'm in.

Kerastase Chronologiste The Gommage, $44

This scrub takes a little more work on your part than a mask -- but it feels so refreshing and leaves hair silky soft. While you're in the shower, but before you shampoo, apply it to damp hair and massage, much like you would a face or body scrub. The micro-fine scrubbers whisk away flakes and give your scalp the detox it's been craving. (Bonus points if you can get your S.O. to do the actual massaging.)

Phyto Phythéol Dry Hair Moisturizing Scalp Exfoliating Shampoo, $26 and Phythéol Oily Hair Scalp Exfoliating Shampoo, $26

A gentle exfoliating shampoo will cleanse your hair effectively without stripping it of your natural oils, says Nawrot. Phyto's new shampoo comes in formulas for both dry hair and oily hair. Both whisk away dandruff flakes (a culprit behind scalp acne) and excess oil; the one for dry hair has extra moisturizing properties and the one for oily hair has ingredients that gently de-grease.

Kiehl's Deep Micro-Exfoliating Scalp Treatment, $20

Scalp acne doesn't stand a chance against this physical exfoliator. It's designed to help treat and prevent dandruff with micronized apricot seeds and argan shells. They scrub away all signs of skin flakes and pore-clogging debris, leaving your scalp feeling squeaky-clean.

"Exfoliating removes dead, dulling scalp cells, stimulates circulation and makes the scalp well prepared to benefit greatly from conditioner," says Fusco. It also helps increase cell turnover. Normally I'd point out that better cell turnover means glowier skin, but you're probably not all that concerned about having a scalp as radiant as Beyoncé. It will, however, make your hair look healthier, shinier and prettier overall.