Dark underarms are common, but what makes them dark? (2024)

Dark underarms are common, but what makes them dark? (1)

Why do underarms get dark?

Underarms can get darker than the surrounding skin for various reasons. Some of these factors are tied to lifestyle while others may be tied to your genetics. There’s no one answer for everyone and there may even be multiple reasons causing your dark underarms. It's important to talk with a healthcare professional if you are concerned your dark underarms are due to an underlying medical condition. We can’t replace a visit to your healthcare provider and the below information is not meant to treat or diagnose a disease or condition.

Hormonal changes

Hormones can cause changes in the production of melanin in your skin. Melanin is responsible for giving your skin its pigment so if you have more melanin than you are more likely to experience hyperpigmentation. If you are pregnant, you may experience hormonal shifts which can trigger excess melanin production. This is common on your inner thighs, areolas, underarms, and even your face-- known as “pregnancy mask.” Coloration may go back to normal after you’ve given birth.

It's especially important to consider the skincare products you are using while pregnant or breastfeeding as some ingredients may not be recommended as safe to use. Please consult your doctor about the skincare products you are using. Taking birth control also affects your hormone levels which can cause the overproduction of melanin in your skin in similar areas as when you are pregnant.

Dark underarms are common, but what makes them dark? (2)

Friction from shaving or waxing

Shaving without the proper lubrication may increase friction against your skin and the blade. A dull blade can also cause friction and pull hair. And while waxing is an alternative, it too can cause inflammation of the hair follicle. This is called post inflammatory hyperpigmentation or PIH for short.

Dark underarms are common, but what makes them dark? (3)

Natural deodorants containing baking soda

A lot of natural deodorants include sodium bicarbonate also known as baking soda. But with a pH of about 9, it is highly alkaline which does not always agree with your body’s skin pH of around 4-5.5. By applying a deodorant with baking soda in it, your skin may react to the change in pH by getting irritated and therefore becoming darker.

If you are using many products, including DIY, on your underarms for your darkness, consider taking a break and giving your underarms time to heal and breathe. Keep this in mind while you are determining your underlying cause and be patient and gentle with your skin.

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Dark underarms are common, but what makes them dark? (2024)

FAQs

Dark underarms are common, but what makes them dark? ›

For most people, dark underarms are caused by something called post-inflammatory hyperpigmentation (PIH), which is a darkening of the skin due to irritation or damage.

How to remove darkness from armpits? ›

Turmeric: Combine yoghurt, turmeric powder, and a few drops of lemon juice to create a paste. Before rinsing it off, apply it to your underarms and let it sit there for 10 to 15 minutes. Anti-inflammatory and skin-lightening qualities of turmeric. Aloe Vera: Aloe vera offers calming and healing effects on the skin.

Are dark underarms a turn off? ›

No, if it's natural, most guys will like it.

What ingredient in deodorant causes dark underarms? ›

Several of the ingredients in deodorants, such as parabens, alcohol, and fragrances, can irritate the skin and cause inflammation, which leads to thickening and darkening over time. Aluminum is also an active ingredient in many antiperspirants, which clogs sweat ducts and causes dryness and pigmentation.

How can I lighten my armpits in 3 days? ›

Baking Soda And Lemon

Mix a tablespoon of baking soda and lemon to make a paste. Massage it over your underarms for about a few minutes and then wash it off using lukewarm water. Baking soda is an excellent exfoliator while lemon is a natural bleaching agent. Both work great in lightening your underarms.

Can dark armpits be fixed? ›

Dermabrasion, which resurfaces the skin, and laser therapies are also used to treat dark skin under the arms.

Why do my underarms get so dark? ›

You're not alone, millions of people suffer from underarm hyperpigmentation, and for a number of different reasons. Dark underarms can happen due to a variety of things, from skin conditions like hyperpigmentation or ingrown hairs, excessive sun exposure, shaving with a razor, or even poor hygiene or diet.

What ingredients to avoid for dark underarms? ›

Pay attention to the ingredients list when shopping for a deodorant. Stay away from products that have clogging elements like aluminum and irritants like alcohol. If you have sensitive skin, go for a fragrance-free, moisturizing deodorant instead.

What deodorant is best to prevent dark underarms? ›

Use a gentle deodorant like Dove to keep you protected from odour and sweat and avoid wearing tight clothing that can cause friction and eventually darken your underarms. For beautiful, even-toned underarms, Dove Ultimate Repair Dark Marks Corrector is the answer.

Why does baking soda darken armpits? ›

Natural deodorants containing baking soda

But with a pH of about 9, it is highly alkaline which does not always agree with your body's skin pH of around 4-5.5. By applying a deodorant with baking soda in it, your skin may react to the change in pH by getting irritated and therefore becoming darker.

Why won't my armpits lighten? ›

Causes of dark underarms

There are many reasons why your underarms may darken, including: chemical irritants in deodorants and antiperspirants. irritation and abrasion caused by shaving. the accumulation of dead skin cells due to infrequent exfoliation.

What is the best underarm whitening? ›

Best Dermatologist Treatment to Lighten the Black under Arms
  1. Laser treatment. It is the most preferred and high-rated underarm skin lightening dermatologist treatment. ...
  2. Dermabrasion treatment. Another popular treatment to lighten the dark underarm is Dermabrasion – the process of layering the area.

Does lemon actually lighten underarms? ›

We want you to know that using lemon juice to lighten armpits is a myth. It has never been proven to work, and it can actually be a dangerous practice! Lemon has been shown to lead to the exact issue you are trying to avoid – more hyperpigmentation.

Why are armpit stains dark? ›

Your sweat contains water, ammonia, urea, salts, and sugar. Those elements mix with one or more ingredients in your antiperspirant, in particular aluminum. The mix contains proteins that then bond to clothing, causing a build up that yellows or darkens over time.

How do you detox dark armpits? ›

Most armpit detoxes use a homemade mask of bentonite clay and apple cider vinegar. Some also include water to dilute the vinegar. Others use equal parts bentonite clay and coconut oil for a more soothing, hydrating mix that still has some antibacterial properties, thanks to the coconut oil.

Which deodorant is best for dark underarms? ›

Use a gentle deodorant like Dove to keep you protected from odour and sweat and avoid wearing tight clothing that can cause friction and eventually darken your underarms. For beautiful, even-toned underarms, Dove Ultimate Repair Dark Marks Corrector is the answer.

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