7 Best Scalp Scrubs for Removing Buildup and Refreshing Your Roots
A scalp scrub is the secret to spreading out wash days.

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Dealing with greasy roots, flakes, itchiness, or hair that feels weighed down no matter how much shampoo you use? Your haircare routine may be missing one very satisfying step: a scalp scrub.
Think of it as exfoliation for your scalp. “A scalp scrub clears away excess oil, product buildup, and dead skin that clogs hair follicles over time,” says dermatologist Mona Mislankar, MD. It creates a cleaner, healthier environment for your hair to thrive. The result? “Patients who scrub weekly often notice less itching and flaking,” says Dr. Mislankar. Plus, your hair can appear fuller since the roots aren’t weighed down, and it’ll look and feel cleaner for longer—AKA, you might be able to push off that wash day a little longer.
Our favorite scalp scrubs, tested by editors:
While anyone can use a scalp scrub, choosing the right one depends on your hair type and scalp concerns. “Ingredients like salicylic acid or tea tree oil are great additions if you deal with buildup or flaking, since they help break down oil and have antimicrobial benefits,” says Dr. Mislankar. But if you have a sensitive scalp, she recommends avoiding anything with added fragrance or sulfates, “since those can trigger irritation and undo the benefit of the scrub itself.”
Most scalp scrubs are meant to be massaged onto a wet scalp before shampooing, though some can replace shampoo altogether. “Once or twice a week is the sweet spot for most people,” says Dr. Mislankar, noting that it’s more of a maintenance step, “similar to how you would not exfoliate your face every single day.”
Frequently Asked Questions
Who should use a scalp scrub in their haircare routine?
Dr. Mislankar recommends using a scalp scrub if you’re “dealing with buildup, whether from dry shampoo/styling products, or just natural oil production.” She also says it’s especially useful if you have an oily scalp, flaking or mild dandruff, or if your hair becomes greasy easily and feels weighed down.
Can scalp scrubs promote hair growth or improve hair thickness?
“Scalp scrubs can support hair growth indirectly by clearing follicles of buildup and improving circulation, which creates a better environment for hair to grow,” says Dr. Mislankar, noting that she does recommend scalp scrubs for patients focused on hair thinning or growth.
While she reiterates that they aren’t a direct treatment for hair loss like minoxidil, “people should think of it as optimizing the foundation their hair grows from, not a stand-alone growth solution.”
Are there any potential downsides or risks to using a scalp scrub?
“I’d recommend anyone with active scalp conditions, like psoriasis, eczema, or an open wound or infection, hold off on scalp scrubs until that is under control, since exfoliation can aggravate inflamed or broken skin,” says Dr. Mislankar.
Can you over-exfoliate your scalp? If so, what are the signs that someone is exfoliating too often?
“Over scrubbing is the most common risk I see, even in healthy scalps, since too much mechanical exfoliation can lead to irritation, sensitivity, or excess dryness,” says Dr. Mislankar. An over-exfoliated scalp feels more sensitive and tender, including tightness and even more flaking and increased shedding, according to Dr. Mislankar. If you notice these signs, it’s best to scale back use and let the scalp recover, “more is not better here.”
How we tested
To find the best scalp scrubs, Anvita Reddy tested three of these products and noted the effectiveness and ease of use for each one on her normal to oily hair type. She also collected recommendations from Cosmo editors who use scalp scrubs as part of their haircare routine. Each editor shared how each scrub felt during use, how their hair and scalp looked and felt after drying, and how the results held up through their next wash day, based on their unique hair type and scalp concerns. We also assessed each formula's ingredient list, highlighting exfoliants that effectively removed buildup and ingredients that helped soothe and hydrate the scalp to support a healthy balance.
Meet the expert
- Mona Mislankar, MD, FAAD, is a board-certified dermatologist and founder of the Cincinnati Skin Center and skincare brand Oathology. She treats both children and adults for a myriad of dermatological issues, from acne to hair loss.
Anvita Reddy is a shopping editor at Hearst Magazines with more than five years of editorial experience. She covers beauty, fashion, home, and lifestyle content for brands including Cosmopolitan, ELLE, House Beautiful, Good Housekeeping, Country Living, and Harper’s BAZAAR. Previously, she was an assistant editor at PS Shopping, where she reported on beauty, home and kitchen, fashion, tech, travel, wellness, and lifestyle trends. When she’s not testing the latest skincare and makeup launches or hunting for under-the-radar deals, Anvita can be found binge-watching reality TV, renovating her first home, or honing her cooking skills.

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