How to Whiten Armpits: Causes, 3 Treatment Types and Tips

Dark underarms can feel like a frustrating cosmetic concern for many people. Fortunately, there are countless ways to tackle underarm darkening – from simple lifestyle changes to natural remedies and medical treatments. According to Dr Justin Boey of Sozo Clinic, understanding the root causes of dark armpits is key to effective treatment. His expertise allows patients to explore solutions tailored to their needs, helping them achieve brighter, healthier underarm skin.  

This guide breaks down the causes of dark armpits, the treatment options available to lighten the skin and tips for maintaining glowing underarm skin.

What Causes Dark Underarms?

Dark underarms are often the result of a mix of internal and external factors. These can range from hair removal habits to skin conditions. Awareness of the causes can help you take better preventative measures and choose appropriate solutions.

• Shaving. Frequent shaving can lead to skin irritation and the appearance of dark patches.  
• Friction. Tight clothing, especially in hot climates, can rub against the skin, causing discolouration over time.  
• Hormonal changes. Conditions like pregnancy, insulin resistance, or polycystic ovary syndrome (PCOS) can trigger hormonal imbalances that darken underarm skin.  
• Deodorants and antiperspirants. Harsh chemicals in deodorants and antiperspirants may irritate the skin, leading to increased pigmentation.  
• Hyperpigmentation. Increased melanin production in the armpits can cause darker patches to develop.  
• The build-up of dead skin cells. Neglecting exfoliation may allow dead skin cells to accumulate, making the underarm area appear darker.  

Internal Causes	External Causes
Hormonal imbalance (e.g., PCOS)	Friction from clothing
Insulin resistance	Regular shaving
Certain medications	Harsh deodorants and products
Underlying skin conditions	Dead skin build-up

How to Whiten Dark Armpits?

To address and brighten dark underarms, consider these tips from Dr Justin Boey.

• Switch to natural or gentle deodorants. Choose products free from harsh chemicals like alcohol and aluminium, which can irritate the skin and contribute to darkening.
• Opt for waxing or laser hair removal. These methods help to remove the hair from the root, reducing the risk of irritation and pigmentation that can occur with shaving.
• Regular yet gentle exfoliation. Use gentle exfoliants designed for sensitive skin to help remove dead skin cells and improve skin tone. Chemical exfoliants are recommended over physical ones to prevent micro tears. Do not rub the skin vigorously when exfoliating to prevent it from becoming irritated.
• Wear breathable, loose-fitting clothing. This reduces friction and skin irritation, leading to darker skin in the underarm area.
• Maintain hydration with moisturisers. Properly hydrating the skin can prevent dryness and irritation. Select moisturisers that are appropriate for sensitive skin.
• Avoid smoking. Smoking can worsen overall skin health and contribute to skin discolouration.

Implementing these lifestyle and skincare changes can help improve the appearance of dark underarms.

Natural Remedies to Whiten Armpits

Natural remedies offer a gentle, cost-effective way to address dark underarms. With consistent care and readily available ingredients, you can work towards a lighter and more even skin tone. Below is a list of effective home remedies, their benefits and how often you can incorporate them into your routine.

Natural Remedy	Benefits	How Often to Use
Cucumber slices	Contain natural bleaching agents; hydrate and soothe the skin	Rub on underarms gently for a couple of minutes and apply daily for 5-10 minutes
Fresh lemon juice	Acts as a natural bleaching agent; comes with antibacterial properties	Apply 1-2 times per week, rinse after 10 minutes
Aloe vera gel	Soothes irritation and reduces pigmentation with natural enzymes	Apply twice daily for best results
Baking soda paste	Acts as a gentle exfoliant, removing dead skin cells; add drops of water to form a thick paste	Exfoliate 1-2 times per week
Turmeric paste	Contains anti-inflammatory and brightening properties	Apply 2-3 times per week, leave for 15 minutes
Coconut oil	Moisturises skin and contains vitamin E, which aids in lightening	Use daily as a moisturiser

Key Tips for Using the Natural Remedies to Address Skin Pigmentation

1. Perform a patch test before applying these remedies to your entire underarm.
2. Use acidic substances like lemon juice in moderation, as they may irritate sensitive skin.
3. Moisturise after exfoliation to maintain hydration and prevent irritation.
4. If irritation or worsening pigmentation occurs, discontinue use and consult an aesthetic practitioner.

These remedies are easy to integrate into your routine and may help lighten dark underarms naturally over time.

Over-the-Counter Products for Armpit Whitening  

For more targeted results, several over-the-counter whitening products are available. These typically contain active ingredients that reduce melanin production or gently exfoliate the upper layer of skin.  

Product Type	Active Ingredients	Cost Estimate	Timeline for Results
Whitening Creams	Niacinamide, Kojic Acid	Moderate ($10–$90)	2–4 weeks
Whitening Serums	Vitamin C, Alpha Arbutin	High ($40–$140)	1–2 weeks
Brightening Deodorants	Licorice Extract, AHAs	Low ($10–$35)	3–6 weeks

Please note that prices can vary based on brand and retailer. Additionally, individual results may differ depending on skin type and adherence to the product’s usage instructions.

Medical Treatments for Dark Underarms  

Medical treatments may be preferred for those seeking faster or more targeted results. Consider consulting an aesthetic practitioner for guidance.  

Laser Treatments

Laser treatments use targeted light energy to reduce melanin production and break down pigmentation. These treatments are non-invasive and with minimal downtime. Depending on the severity of pigmentation, multiple sessions may be required.

Chemical Peels

Chemical peels involve a solution to exfoliate dead skin and promote new cell regeneration. This process leaves the underarm skin lighter. The downtime can vary depending on the strength of the peel, but mild redness or peeling is common for a few days.

Microdermabrasion

Microdermabrasion uses fine crystals or a diamond-tipped device to exfoliate the outermost layer of skin. It stimulates skin renewal, revealing brighter, more even-toned underarm skin. The procedure is non-invasive and typically requires no downtime.

Intense Pulsed Light (IPL) Therapy

IPL therapy utilises energy light to target and reduce pigmentation. It is effective for various skin tones and can improve overall underarm appearance. Sessions are relatively quick, but results may require several treatments for optimal outcomes.

Topical Prescription Creams

Topical prescription creams containing hydroquinone, retinoids, or azelaic acid are often recommended to lighten pigmentation. These creams are applied directly to the underarm area, working overtime to improve skin tone.

Treatment	Cost Range*	Downtime	Results Duration
Laser Treatments	$270–$500 per session	Minimal	Immediate to after 2 sessions
Chemical Peels	$120–$600 per session	1–3 days	Visible after 2–3 sessions
Microdermabrasion	$100–$250 per session	None	Visible after 1–2 sessions
Intense Pulsed Light	$200–$400 per session	Minimal	Multiple sessions needed
Topical Creams	$10–$200 per tube	None	Gradual results over weeks

*The costs mentioned here are approximate and may vary depending on individual needs, the severity of the condition and the specific treatment plan recommended by the practitioner. Additional charges may apply for supplementary procedures or follow-up sessions. Please consult the clinic directly for a detailed quote.

How to Whiten Armpits Safely?  

The key to effective whitening is to approach it safely and balance expectations. Here are essential tips to keep in mind during the process.   

• Patch test first. Test unfamiliar products or remedies in a small area, such as your inner arm, to prevent harsh skin reactions.  
• Avoid irritants. Steer clear of products with high alcohol content or allergens.  
• Use sunscreen. Apply sunscreen with high-SPF to exposed underarm skin if wearing sleeveless clothing outdoors.  
• Exfoliate gently. Exfoliate once or twice weekly to avoid damaging sensitive skin.  

Taking your time and exercising care increases the likelihood of achieving brighter underarms without complications.  

Side Effects and Risks of Armpit Whitening  

Armpit whitening treatments, whether natural or clinical, can carry potential side effects depending on the method used and individual skin sensitivities. Understanding these risks is essential to make informed decisions and avoid unwanted complications.

• Redness. A common reaction to both natural remedies and clinical treatments, particularly when the skin barrier is compromised.
• Sensitivity. Skin in the underarm area may become more sensitive to products or environmental factors like sweat and heat.
• Irritation. Friction or allergic reactions from ingredients can lead to discomfort or rashes.
• Hyperpigmentation. Excessive use of harsh treatments can sometimes worsen pigmentation.
• Peeling or dryness. This is particularly common with chemical peels or exfoliating remedies.

Method	Common Side Effects
Natural remedies	Mild redness or irritation
Whitening products	Sensitive or dry skin
Medical treatments	Temporary redness, swelling, peeling

Always stop any treatment causing persistent discomfort or consult a professional if you’re concerned about adverse effects.

Maintenance Tips for Brighter Underarms

Once you’ve achieved the desired results, it’s important to maintain them with simple daily practices.  

• Stick to gentle deodorants and antiperspirants. Avoid products with harsh ingredients to prevent skin irritation.  
• Wear breathable fabrics. Say yes to comfort and reduce the chances of friction.  
• Regular exfoliation. Keep dead skin build-up in check by exfoliating weekly.  
• Hydrate and moisturise. Keep your skin happy with nourishing creams or oils.  

Maintaining consistency in these habits ensures your hard work doesn’t go to waste.

Conclusion

Dark underarms are a common concern, but with the right approach, they are entirely manageable. From natural remedies and over-the-counter solutions to professional treatments, it’s important to prioritise safe and effective options. 

Similarly, addressing skin issues like darker underarms and acne scars can help achieve an even skin tone, promoting overall skin confidence.

Keep in mind that everyone’s skin is unique. The best results come from choosing methods tailored to your needs and goals. Don’t hesitate to consult a skincare expert for personalised guidance.

Making small lifestyle changes or starting a treatment today, healthier, brighter underarms could be just around the corner.