The best scalp scrub you can buy

Ouai Scalp & Body Scrub is a gentle head-to-toe exfoliator that saves shelf space in your shower.

Body scrubs and scalp scrubs are very similar, and sometimes, it makes sense to combine the two. Ouai Scalp & Body Scrub is the head-to-toe exfoliator you've been waiting for — just don't use it on your face.

This sugar-based scrub contains a probiotic blend to help protect and fortify your skin against environmental stressors, and coconut oil to hydrate. Sugar is one of my favorite physical exfoliators because it dissolves as you scrub, leaving behind minimal mess in your shower.

Cosmopolitan recommends this scrub for fine hair types, and it's been featured as a top pick by Women's Health, Elle, and Allure. The product has an overall 4.4-star rating at Sephora based on almost 200 shopper reviews.

One shopper even says it helped her psoriasis, though you should definitely talk to a dermatologist if you have the condition: "Been struggling with psoriasis and hair loss for about 2 years. I'm currently using a lot of other products that are helping but I can definitely tell this product has accelerated the process of getting my scalp back to normal. I bought this thinking I might return it, but I absolutely will be keeping it and buying more :-)"

Pros: multitasking, contains probiotics and coconut oil

Cons: expensive, strong rose scent

Briogeo Scalp Revival Charcoal + Coconut Oil Micro-Exfoliating Shampoo cleans, soothes, and detoxifies your scalp.

If you struggle with a really itchy or sensitive scalp, consider incorporating Briogeo Scalp Revival Charcoal + Coconut Oil Micro-Exfoliating Shampoo into your routine a few times a week.

This Allure Best of Beauty-winner is packed with detoxifying charcoal that unclogs hair follicles and prevents gunk from building up. Coconut oil hydrates while a blend of peppermint, tea tree, and spearmint oils soothes itchiness. Since it doubles as a cleanser, this cuts down on the number of products you'd need to pile on afterwards.

Women's Health names this the best scrub for dry scalps because it's moisturizing and gentle, using only the finest charcoal particles to exfoliate. Men's Health, Into the Gloss, Bustle, and Cosmopolitan have also featured the Briogeo scrub and shampoo.

Sephora shoppers give the scrub 4.1 stars out of more than 1,300 reviews.

Pros: very gentle exfoliating, hydrating, cleanses, soothes irritated scalps

Cons: expensive

The sulfate-free L'Oréal EverFresh Micro-Exfoliating Scrub uses apricot seeds to exfoliate, and only costs around $10.

Most of the scrubs on this list are pretty pricey, though expected for the amount of product. But if you're on a budget or your hair and head have less specific needs, you might like the L'Oreal EverFresh Micro-Exfoliating Scrub, which uses tiny apricot seeds to remove flakes and comes in at around $10.

This sulfate-free scrub is gentle and nonabrasive so it's great for many hair types. Men's Health points out, "This drugstore favorite uses teeny-tiny particles that won't get caught in your hair." It's not a replacement for your shampoo or conditioner though, so this one will require an extra step in your routine once or twice a week.

Editors at Allure, Into the Gloss, Bustle, and Women's Health rave about this affordable and effective scrub, while Amazon shoppers give it 3.9 out of 5 stars, based on more than 300 reviews.

"I have been having a hard time with finding a good scalp exfoliating scrub. Either they leave my head feeling really gritty or my hair feels oily but THIS one works great for me," writes one shopper.

Pros: affordable, sulfate-free, nonabrasive particles

Cons: not a replacement for shampoo or conditioner

Kiehl's Deep Micro-Exfoliating Scalp Treatment comes in mess-free packaging, and uses apricot seeds and argan shells to exfoliate.

Tired of scalp scrubs that only come in messy jars? Kiehl's Deep Micro-Exfoliating Scalp Treatment, a favorite of Insider Picks editor Malarie Gokey, comes packaged in a neat squeeze bottle that reduces the likelihood of it getting watered down with shower water.

Like our L'Oréal pick, this scrub exfoliates with small apricot seeds, plus argan shell powder to help add moisture. It also uses essential oils to hydrate and give hair some shine. Apply it to a dry scalp and let it sit for up to five minutes before you even step in the shower, instead of standing around and waiting for it to do its job.

Self writer Rachel Charlene Lewis points out that this scrub is runnier than others, which is why the packaging is a squeeze tube as opposed to a jar. But that doesn't mean the formula is less effective; "It did really well at taking care of the flakes that tend to pop up right along my hairline that I really can't stand," writes Lewis.

Men's Health, Byrdie, InStyle, and Health editors are also fans of the Kiehl's Deep Micro-Exfoliating Scalp Treatment.

Pros: thin consistency can be easier to use, can be used on dry scalp, squeeze bottle

Cons: bottle is small for price, some might find consistency too thin

Just like with skin-care products, not every scalp scrub we recommend is going to be a hit for your skin and needs. That's why we're including a few other top contenders in case you needed more recommendations.

• Kristin Ess Instant Exfoliating Scalp Scrub ($14): I absolutely love stylist Kristin Ess' hair-care line; it's available at Target with effective formulations and luxe packaging, but everything is surprisingly affordable. Her exfoliating scalp scrub isn't as frequently recommended as the L'Oréal drugstore pick, but it could be a nice option if you have a very irritated scalp.
• dpHUE Apple Cider Vinegar Scalp Scrub with Pink Himalayan Sea Salt ($38): This sea salt, apple cider vinegar, avocado oil, and aloe vera-based scrub is great for dyed hair because it protects the vibrancy of your color. But the customer reviews were more mixed, which held me back from putting this in the top five.
• Shea Moisture African Black Soap Bamboo Charcoal Pre-Shampoo Scalp Scrub ($9.99): While it didn't have as many expert reviews as others included on this list, happy customers say this curly hair-friendly scrub is great for dry to oily scalps.