How to manage
armpit sweating,
even in a heatwave

How to manage armpit sweating, even in a heatwave

JULY 2022 | 5 Minute Read 

how to manage armpit sweating in a heatwave


With many parts of the world experiencing record-setting heatwaves, excess armpit sweating is inevitable. Not only is it uncomfortable and sometimes embarrassing to see those sweat marks through clothes, but excess armpit sweating can lead to irritation, rashes and chafing.

What should you do if you want to avoid antiperspirants due to suspicions surrounding aluminum chloride but want to stay dry and comfortable?

Here are my best tips to help you manage armpit sweating during a heatwave.



Two main things happen to our bodies when in an extreme heat situation: sweat and dilated blood vessels.  


Dilated blood vessels increase blood flow towards the skin allowing more heat to be lost to the environment, but this also results in lower blood pressure which makes the heart work harder to pump blood and can result in heart-related complications. 


Sweat is necessary as it cools the body down when it evaporates off the skin and helps to maintain the ideal internal body temperature. However, excess sweating can lead to a loss of salt from the body and extreme cases can result in nausea and headaches. 

Excess sweat can also cause heat rashes, chafing and skin irritations especially in the armpit and groin areas where there are naturally more skin folds and friction. 


When looking for armpit sweating remedies, I think it’s important to opt for natural solutions. Antiperspirant is designed to block sweat glands using aluminum chloride, which is not only a suspicious ingredient, but blocking your body’s natural process of sweating can be potentially dangerous, especially in extreme heat. If your body cannot cool down through sweat, you can be more at risk of a heat emergency such as heat exhaustion or heat stroke. 

natural deodorant is not enough

Natural deodorants do not block sweat, but there are natural ways to managing armpit sweating during a heatwave and help prevent chafing and absorb excess moisture, leaving you more comfortable. 


By using a natural sweat-absorbing powder, you will not block your sweat glands. the sweat powder is a talc-free and safe formula that was inspired by athletic chalk to absorb the excess perspiration that can occur in the armpit region during extreme heat temperatures and even on a regular basis for some. 

The proprietary Thessalite 6® Powder Technology contains 4 key ingredients to manage moisture and chafing: 

  1. Magnesium carbonate, a super-absorbent, cake-free chalk (a finer version of athletic chalk) 
  2. Zinc oxide, creates a barrier to protect the skin from moisture and reduce chafing 
  3. Apple cider vinegar, natural antibacterial ingredient to help prevent odor 
  4. Rice starch, gives the formula a silky feel and minimizes chafing while absorbing moisture 


Underarm hair itself does not cause sweat, however hair can hold moisture and heat and slow down or prevent the moisture from evaporating. This also leads to body odor as the presence of moisture in the armpit region, combined with bacteria leads to odor production. Additionally, armpit hair can act as a barrier and prevent your deodorant or the sweat powder from reaching the surface of the skin, leading to more odor and sweat breakthrough throughout the day.  

If you don’t want to shave or wax your armpit hair, even trimming the hair can go a long way in minimizing trapped moisture and causing odor. 

trim armpit hair to manage armpit sweating


I always recommend wearing light, breathable and loose-fitting fabrics when you are a natural deodorant user, but it is even more important to seek these fabrics out when you are trying to manage excess armpit sweating. 

Examples of breathable fabrics are cotton, linen, bamboo and silk. Avoid wearing rayon or polyester that traps moisture and can lead to more odor. 


Staying comfortable and managing armpit sweating naturally is possible, even in a heatwave. Using the sweat powder, removing underarm hair and wearing loose, breathable fabrics will help manage excess sweat and minimize chafing and irritation that can be common when heat and moisture is abundant. 

All content found on this website is created for informational purposes only. The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this Website. 


Clean beauty industry maven and product developer Madame Sweat (Mary Futher) founded kaia naturals after spending 20 yearsworking for global beauty companies. She now shares advice on modern hygiene etiquette for grooming, hosting, home and travel on Instagram, TikTok and her popular blog called The House of Hygiene.

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