care for dark underarms

What Causes Dark Underarms and How Do You Prevent and Treat It?

Have you ever experienced being shy to raise your arms when wearing sleeveless clothes? Maybe, you have even been hesitant to buy sleeveless tops, dresses, and swimsuits because you are afraid to show your underarms.

Dealing with dark or discolored underarms can be embarrassing and may even cause an individual to lose confidence and self-esteem. If you have the same problem, read on to discover how to address it.

What Causes Dark Underarms?

Ideally, your underarms should be about the same shade as the rest of your body. But sometimes, there are certain factors that cause your underarms to become darker. Here are some of the culprits that may be causing your dark underarms.


Some deodorants and antiperspirants contain paraben, alcohol, and fragrances. These chemicals can irritate your armpit skin and cause inflammation. Over time, this reaction can make the skin in your underarm thicker and darker.

There are also some antiperspirant products that have aluminum as an active ingredient. This component is effective in preventing you from sweating. However, it does so by clogging up your sweat ducts, causing your armpit to become dry and more pigmented over time.


Shaving is a quick and easy way to get rid of your armpit hair. However, using a razor to get rid of your underarm hair can also damage the skin of your underarms.

Shaving can cause irritation and abrasion on your armpit skin. The irritation caused by the razor can trigger post-inflammatory hyperpigmentation, a condition that can make your underarm skin darker.

Additionally, shaving only removes the surface-level hair from your underarms. This means that the root of each hair is still in your skin. If your hair is much darker than your skin tone, the subsurface hair may make your underarms appear darker.

Tight Clothes

You must be aware that friction causes heat, which then turns the skin darker after some time. When you wear clothes made from synthetic fabrics that are tight around the armpits, you may be constantly applying friction to your underarms as you move around. If you do this regularly, it may cause your underarms to become darker.

Lack of Exfoliation

Your underarm skin is almost as sensitive as your face’s. This means that your underarm needs the same skin care routine as your face to keep it healthy.

When not cared for properly, your underarms may have an accumulation of dead skin cells. This buildup may cause the skin of your armpit to appear pigmented and feel rough.

To avoid this from happening, make sure to get rid of the dead skin cells from your armpits by exfoliating. Just be careful not to rub your skin raw. Doing this might cause more damage to your underarms than good.



Smoking is an activity that not only damages your lungs. It also makes your underarms darker.

When you smoke regularly, you can suffer from smoker’s melanosis. This condition causes hyperpigmentation in various areas of your skin, including your underarms.

You will notice dark patches appearing on your skin as long as you continue smoking. Once you stop for good, your complexion will slowly return to normal.

Hormonal Imbalance

Aside from external factors, dark underarms can also be caused by internal reasons. One of these internal factors is hormonal imbalance.

When you suffer from hormonal imbalance, you may develop a condition called melasma. This occurs when the generation of the melanin-producing cells on your skin is triggered by excess levels of progesterone and estrogen. Because of this, you may experience hyperpigmentation in various parts of your body.

Melasma commonly occurs in pregnant women and those who are taking hormonal birth control pills. If you fall under these categories, make sure to look out for any discoloration on your skin and armpits.

Acanthosis Nigricans

This condition causes parts of an individual’s skin to darken and thicken over time. Some of the most common areas affected by acanthosis nigricans are the underarms, necks, elbows, and knees.

Acanthosis nigricans is often connected to other underlying health issues, such as obesity, type 2 diabetes, and cancer. Although this condition is not dangerous on its own, it can serve as an early indication of various types of illnesses.


Before trying any underarm whitening techniques, you must first address the factors that cause the discoloration on your underarms. Once you accomplish this, you can also prevent your underarms from getting more damaged and darker. Here are some things you can do.

Change Deodorant

Choose a whitening deodorant that does not contain any harmful chemicals, such as alcohol and paraben. One product that you can use is Gluta-C Intense Whitening Deodorant, a deodorant made with mild ingredients that will not irritate the skin of your underarms.

Avoid Shaving

Since shaving can scrape and irritate your armpit, choosing a different method of armpit hair removal is the best thing to do. Instead of taking a razor to get rid of underarm hair, it is better to use wax. You can also undergo laser hair removal treatments for a more permanent solution.

Additionally, you can use a product that will slow down or stop hair growth on your armpits. One item you can use is the Gluta-C Underarm and Bikini Gel, which has hair retardant properties. With this, you won’t have to worry about your armpit hair being too thick or growing too fast.


Remove the layer of dead skin cells from your underarms by exfoliating regularly. Make sure to use a high-quality exfoliating product, such as the Gluta-C Shower Salt Scrub with Kojic Plus+ Whitening System, to acquire the results you want.

Avoid Wearing Tight Clothes

You should aim to reduce the friction you apply to your underarms. Achieve this by wearing loose-fitting clothes as often as possible.

Stop Smoking

You have already learned about smoker’s melanosis and how it can darken your underarms. To address this issue, you have to quit smoking. After some time, you will notice the dark patches on your skin, especially your underarms, disappearing.

Talk to a Medical Professional

If your dark underarms are caused by an underlying health condition or any medications you are taking, you should talk to your doctor. They can help you come up with a way to address the discoloration of your underarms effectively.

Establish an Underarm Care Routine

The most effective way of preventing and treating dark underarms is by taking care of them thoroughly. This means you need to have a special skincare routine dedicated to your sensitive underarms. To help you get started, here is the Gluta-C Underarm Care Routine:


You need to exfoliate your skin once or twice a week to reveal a younger and brighter complexion. You can use any natural body scrub, such as the Gluta-C Body Scrub or Gluta-C Kojic Plus+ Shower Salt Scrub, to exfoliate your armpits gently and completely.

Apply Deodorant

To keep your underarm skin fresh and protected all day long, you must apply a paraben-free deodorant before going out or after taking a bath. A product you can use is the Gluta-C Whitening Deodorant, which is packed with master antioxidants, Glutathione and vitamin C, and Daisy Flower Extract. These ingredients work together to lighten your armpits and shield them from odor-causing bacteria.


You should also take the time to treat your underarms using the Gluta-C Underarm and Bikini Gel. This amazing product uses Glutathione, Vitamin C, Daisy Flower Extract, and Soybean Seed Extract to smoothen and lighten your underarms. You can also use it to brighten your other intimate areas.

Regain your self-esteem and be more confident in raising your arms by addressing your dark underarm problems. Just remember that you first have to know the cause of your issues to determine the best way to start your treatment. You should also avoid any damaging factors to prevent your underarms from getting darker.

If you would like to learn about effective underarm whitening products, contact us today.

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