Can Antiperspirants Make Your Sweat Smell Worse? - Science World (2024)

A while back, I switched from using adeodorant toan antiperspirant. Iwas enchanted by a newsmell that I neededto have wafting out of my armpits. And for a week, I happily swiped it on and floated through the day in a floral cloud... until I wasn’t anymore. Until the smell coming out of my armpits was unlike anything I had ever experienced before. What was going on?

Can Antiperspirants Make Your Sweat Smell Worse? - Science World (1)

It’s all Natural

Armpits aren't the only place you can sweat from. The average person producesaround a litre of sweat aday, from(roughly) 3 million sweat glands. These sweat glands come in two styles: eccrine glands and aprocine glands. Eccrine glands are smallerand cover most of your body. Theyproduce a watery, odourlesssweat that helps control you temperature. The larger apocrine glands are mostly found in your armpits. They start producing sweat when you hit puberty, and secrete a thicker, more plasma-like sweat, filled with proteins and fatty acids. This is why the the underarm stains on your t-shirts can sometimes appear yellowish. (Tip: if you want to get rid ofthose yellow stains, rub in some non-seasonedmeat tenderizer before you throw your shirts in the wash! The tenderizer contains enzymes that willbreak down the sweat and help it wash out.)

Can Antiperspirants Make Your Sweat Smell Worse? - Science World (2)

Deodorants vs Antiperspirants

While often lumped in with deodorants, antiperspirants actually work quite differently. Deodorants work by masking smellsafter beingswiped across your armpit.Antiperspirantsprevent sweat through the use of an aluminum-based compound. If you swipe your antiperspirant on before bed,the antiperspirant willdissolvethroughout the night andcreate a gel-like plug that blocks and contricts your sweat glands. Thistemporarily preventssweat from coming out.

Can Antiperspirants Make Your Sweat Smell Worse? - Science World (3)

Armpit Issues

It was about a week after I started using the antiperspirant that I noticed my sweat’s odour changing. There had always been a smell in my armits, but suddenly it was worse. Way worse!

It turns out, there was a lot of action going on in my armpits and by introducing an external force into the equation, I had messed up my armpit ecosystem.

There are quite a few different types of bateria that like to live in your armpits. They feed on the fatty sweat you produce there. Some of them produce more noticable odours than others.Researchhas found that the salts in antiperspirants can cause an imbalance of bacteria. The aluminum compounds kill off the less smelly bacteria, giving the smellier bacteria more opportunity to thrive, causing more body odour.Reading this brought my relationship with my antiperspirant to an abrupt end, and after a brief detox period, I made the switch back to deodorants (and my smell returned to normal, thankfully!)

But antiperspirant isn't the only thing that can mess with your armpit's natural odour. Eating strong smelling foods like garlic can cause a temporary change in body odour as their chemical compounds make their way out of your body.

So there you have it! Antiperspirants can make your armpits smellier. Have you ever noticed a change in your sweat? Let us know in the comments!

Can Antiperspirants Make Your Sweat Smell Worse? - Science World (2024)

FAQs

Can Antiperspirants Make Your Sweat Smell Worse? - Science World? ›

The aluminum compounds kill off the less smelly bacteria, giving the smellier bacteria more opportunity to thrive, causing more body odour.

Does antiperspirant make sweat smell worse? ›

"Your armpit microbiome is altered considerably when you wear antiperspirant," says Chris Callewaert, the study author, who goes by the name Dr. Armpit (yes, really). "It can contain more of the corynebacteria, and can thus make your armpit odor more unpleasant."

Is there a downside to antiperspirant? ›

The aluminum-based compounds in antiperspirants — their active ingredients — keep sweat from getting to the surface of the skin by blocking the sweat glands. There's a concern that if the skin absorbs these aluminum compounds, they can affect the estrogen receptors of breast cells.

Why do my armpits smell worse with aluminum free deodorant? ›

Giuseppe. "When switching from an antiperspirant to a deodorant, you are removing the aluminum and releasing waste which has been blocked. This is a natural process as part of our body's built-in mechanisms, but it may contribute to releasing some slightly unusual body odor in comparison to what you are used to.

Why do I smell so bad when I sweat even with deodorant? ›

Body odor is caused by a mix of bacteria and sweat on your skin. Your body odor can change due to hormones, the food you eat, infection, medications or underlying conditions like diabetes. Prescription-strength antiperspirants or medications may help.

Is it bad to wear antiperspirant every day? ›

But is wearing antiperspirant deodorant on your skin all day and all night harmful? Lipner says “there are no known health risks associated with wearing deodorant at night or wearing deodorant too often.”

How do you get rid of armpit odor from antiperspirant? ›

The best way to prevent smelly armpits is to wash daily and after sweating. Using antiperspirant or deodorant and shaving the armpits can also help. Avoiding alcohol and certain foods, such as onions and garlic, will also help prevent smelly armpits in some cases.

Which is healthier deodorant or antiperspirant? ›

Contrary to popular belief, one isn't better for you than the other. If you don't like the feeling of underarm wetness or you sweat through clothes, then an antiperspirant may be your best bet. If sweat doesn't bother you as much, but body odor is out of the question, try an aluminum free deodorant.

Why stop using antiperspirant? ›

In reality, an antiperspirant only blocks sweat from developing, and it does not address the bacteria that causes body odor. In fact, higher concentrations of chemicals or bacteria that are created when your body does not detox through sweat could make your body odor worse.

How long does it take to detox from antiperspirant? ›

This adjustment typically happens in a few different stages. It may take a few days or even a week before you notice any unwanted side effects of detoxing from antiperspirants. The smelliest part of your detox will likely last a week or two.

Are there natural antiperspirants? ›

Annie Gonzalez of Miami's Riverchase Dermatology adds, “Given that aluminum cannot be an added ingredient in natural deodorants, there is technically no such thing as a natural antiperspirant.” But there is a longer answer that is less cut and dry. Dermatologist Dr.

Why do I still stink after months of using natural deodorant? ›

Sometimes, the effectiveness of natural deodorant rests entirely on the formula or fragrance and your body chemistry. If you try a scent and you find you are smelling even worse then you probably need to switch to a different scent profile. If you tried a minty scent try a floral scent.

When I open my legs, it smells.? ›

The most common cause of odor coming from that area is caused by the action of bacteria on sebum,” explains Dr. Robert Brodell, Chairman of the Department of Dermatology at the University of Mississippi Medical Center. “The other major cause is what I'm going to call a 'yeast infection. ' We call it intertrigo.

Why can I smell myself through my pants? ›

Limiting frequent bathing can lead to dirt, sweat and dead skin cells build up leading to Your clothes have a strong smell. You can reduce these effects by showering regularly and washing with mild soap and warm water. Sweating in the groin area can attract fungi and bacteria that lead to bad odors.

What does diabetic sweat smell like? ›

A person should also contact a doctor if their body odor suddenly smells different. A fruity smell could indicate diabetes due to having high levels of ketones in the bloodstream, while liver or kidney disease can often lead to a bleach- or ammonia-like smell due to a buildup of toxins in the body.

Should you use antiperspirant if you sweat a lot? ›

Antiperspirants are considered the first line of treatment for excessive sweating of the underarms, hands, feet, and sometimes face. They are called the first line of treatment because they are the least invasive and experts recommend that they be tried first, before other more invasive treatments.

What is better for smelly armpits deodorant or antiperspirant? ›

Contrary to popular belief, one isn't better for you than the other. If you don't like the feeling of underarm wetness or you sweat through clothes, then an antiperspirant may be your best bet. If sweat doesn't bother you as much, but body odor is out of the question, try an aluminum free deodorant.

Does antiperspirant reduce body odor? ›

Antiperspirants contain aluminium-based compounds that temporarily block sweat pores, thereby reducing the amount of sweat that reaches your skin. Deodorant. Deodorants can eliminate odor but not sweat. They're usually alcohol-based and turn your skin acidic, making it less attractive to bacteria.

What's the best deodorant for stinky armpits? ›

Best Overall

Give your pits the protection they need with our top pick, the Uriage Clinical Strength Deodorant. It's a roll-on antiperspirant that glides on in just a few swipes to keep sweating at bay. The aluminum-based formula works by reducing underarm wetness, though it also targets odors.

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