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Home » Hair Care Advice

Why Does My Hair Smell Like Wet Dog? How To Get Rid of the Smell

Kenneth ByrdBy Kenneth ByrdMBA · 15+ years in hair care · Co-founder of Curl CentricUpdated Sep 13, 20266 min read · Reviewed by Kira Byrd

Evidence-basedPublishing since 2008May contain affiliate links
Woman with long dark curly hair in a white pinstripe shirt, looking off to one sidePin

As off-putting as it might be, wet dog smell in hair is a completely normal phenomenon. Perfectly hygienic people all over wake up with wet dog-scented hair and wonder, "why does my hair smell like wet dog?"

If you're one of these people, you need answers - luckily, we're here to enlighten you. There are several things that could be to blame, and in this article, we'll reveal all of the main culprits.

Why Does My Hair Smell Like Wet Dog?

The causes behind wet dog smell are primarily biological: bacteria, sweat, infections of the scalp, and more. In this section, we'll take a deep dive into these causes to give you some insight into why your hair smells bad.

Smelly Sebum

The leading cause of wet dog smell is smelly sebum, natural oil production that originates in the scalp's sebaceous glands. The point of sebum is to lubricate the hair shaft, locking in moisture and promoting healthiness and shine.

Though the secretion of sebum is both natural and necessary, the presence of bacteria or odors from the food you ingest can make it smell bad. Overproduction of sebum can also result in a funky smell emanating from your scalp. 

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While you may not have much control over the bacteria on your smelly scalp, fried foods, garlic, and onions can all cause your sebum to smell. 

Close portrait of a woman with dark curls resting her head toward her shoulderPin

Untreated Dandruff

Dandruff is a condition where the scalp sloughs off skin flakes. These flakes of dead skin can cause build-up, scalp irritation, residue, and, thus, the proliferation of bacteria. When dandruff is left to its own devices, a smell may develop. 

Sweating A Great Deal

The second cause of wet dog smell is sweat, which can sometimes act like an odor activator. The sweat mixes with the bacteria on the scalp and emits a powerful odor in some people.

If you notice that the wet dog smell is most noticeable after you've sweated a bunch, this could be the cause you've been looking for. 

Mold Growth

Sometimes the wet dog smell can be confused with the scent of mold. The truth is that moldy hair can be undetectable to the eye in its early stages, but it can smell really bad.

Mold growth in hair stems from a ton of things, but the most common cause of moldy hair is leaving your hair wet for an extended period of time. 

Hot Water

Yes, hot water can contribute to that wet dog smell. The issue with hot water is that it zaps your scalp of sebum and thrusts your sebaceous glands into overdrive. Once that happens, your scalp becomes overly oily, and there goes that dreaded stench. 

Hormonal Imbalance

It's incredible how much damage a simple hormonal imbalance can do to the human body, from hair loss to male pattern hair growth in women to acne and a host of other complications. It turns out that a hormonal imbalance can make your hair smell bad, too!

This happens because stress and anxiety throw the body's sebum production off balance, causing either too much sebum (resulting in wet dog smell) or too little (resulting in dryness).

How To Get Rid of Wet Dog Smell

Smiling woman holding the collar of her white pinstripe shirt with both hands, dark curls loosePin

Now you know several potential reasons why your hair smells like a wet dog. Now let's look at how to eliminate the smell. These tips are quick, easy, and effective. They also won't cost you an arm and a leg, so no worries there.

Clarifying Shampoo

Clarifying shampoo is the number one go-to for suspicious hair smells. This type of shampoo, as its name suggests, will clear all the unwanted residue out of your hair, including the bacteria or oils causing the smell.

Though clarifying shampoo works wonders for all types of hair, it is especially useful for locs. Locs tend to harbor more residue, oils, and bacteria than loose hair. That's why people with locs often tend to use a clarifying shampoo either exclusively or at least once a month.

Maple Holistics Tea Tree Shampoo is a great natural clarifying shampoo. It is sulfate-free and formulated to cleanse the hair deeply, removing residue from sebum and chemical hair products.

To use it, all you've got to do is saturate your hair with water, massage some shampoo into your hair, and then rinse thoroughly. 

After one clarifying shampoo session, you may notice a dramatic difference in your hair's smell. 

Dry Your Hair Thoroughly

Drying your hair thoroughly after shampooing it, getting rained on, or sweating is extremely important. When your scalp is left wet for a while, the chances of developing a wet dog smell skyrocket. So, break out your microfiber towel, blow dryer, or hooded dryer and get that hair 100% dry. 

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Wash Your Hair with Lukewarm Water

Since hot water sets off a smelly chain reaction of dry scalp, sebum overproduction, and an awful smell, we advise you to stay away from it. After lathering your hair up, always use lukewarm or even cold water for rinsing. 

Try Essential Oils

If you're in a situation where you don't have the time to properly address the wet dog smell, you can apply essential oils to your scalp and hair to disguise the smell.

From peppermint to lavender to orange peel, there are tons of fragrant varieties to try out. Just make sure that you dilute the essential oil with a carrier oil (olive oil, coconut oil, etc.) to guard against hair dryness and scalp reactions. 

Treat Dandruff

The easiest method of treating dandruff, which could be behind the wet dog smell, is to buy a medicated dandruff shampoo. T Gel is one of the best-medicated shampoos available online.

It effectively treats psoriasis and seborrheic dermatitis, two conditions that cause dandruff. Once these issues are under control, the wet dog smell should subside. 

How To Prevent Wet Dog Smell in the Future

Smiling woman twirling the end of one dark curl between her fingers, white pinstripe shirtPin

Once you get rid of the wet dog smell, we'll bet you never want it to return. Luckily, there are a few things that you can do to prevent the smell from creeping up again. We'll take a look at them below: 

Wash Your Hair Regularly

In the black community, we tend to encourage washing our hair sparingly since one of our main goals is to maintain moisture and, thus, maintain length.

But if you have the type of hair that produces more sebum, you are going to want to forget the "Once a week!" mantra the rest of the community swears by and instead wash your hair every two to three days.

Doing so will prevent sebum and residue build-up, leaving your hair sweet-smelling instead of sour. Don't forget to dry your hair thoroughly afterward, too. 

Cover Your Hair Outside

If you live in an urban jungle full of smog and pollution, it's a good idea to cover your hair when going outside. Not only will you be protecting it from harmful sun exposure, but you will also keep pollution and grime at bay.

You have several options for protecting your hair from the smelly outside elements, including bonnets, hats, and scarves. Just make sure that your headwear isn't absorbent (cotton is the worst), as it will zap your hair of all moisture. 

Woman standing with her arms folded in a white pinstripe shirt, long dark curls over one shoulderPin

Related Articles

  • How To Make Your Hair Smell Good
  • Do Dreadlocks Smell?
  • How To Get a Smoke Smell Out of Hair
  • Why Does My Hair Smell Bad After I Wash It?

And that's it: the why and how concerning the wet dog smell in your hair! Follow the steps in this article, and you'll be well on your way towards odor-free, beautiful hair.

There's no need to be embarrassed by how your hair smells when you know what to do to remedy it. We wish you the absolute best with your hair now and in the future.

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Kenneth Byrd

About the author

Kenneth Byrd

Co-founder and Managing Partner

Publishing on textured hair since 2008MBA, University of Alabama at BirminghamExecutive education, WhartonTop 40 Under 40, Birmingham Business Journal

Kenneth does the research behind the guides here: reading the studies and checking whether a claim holds up before it gets published, under our editorial guidelines. Outside Curl Centric he leads an operations organization of more than 1,000 people, and he serves on the board of Oasis Counseling for Women and Children. Curl Centric's hair typing system is the first listed reference in a peer-reviewed paper in the International Journal of Women's Dermatology, and it is cited by Wikipedia.

More about KennethAbout Curl Centric

Kira Byrd

Hey, I’m Kira

Curl Centric is run by me and my husband Kenneth. We’ve been publishing evidence-based hair care since 2008 to help you care for your curls with confidence.

More about us →
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Written and reviewed by Kenneth and Kira Byrd Independently owned, publishing since 2008 950+ guides, fact-checked before publishing Editorial and advertising teams kept separate

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