Underarm Whitening Secrets: Do Potatoes & Baking Soda Really Work? KOLs Swear by These Tips to Beat Underarm Pigmentation

Underarm whitening is a beauty step no woman should skip. Nothing’s more awkward than putting on a cute tank top only to realise your underarms are dark and dull! Today, we’ve rounded up popular underarm whitening methods and compared them to see which ones actually work.

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5 Everyday Habits to Brighten Underarms Faster

You don’t always need expensive treatments — a few lifestyle tweaks can make a visible difference over time.

1. Ditch the Razor

If you want whiter underarms, stop shaving. Razors not only cause darkening but also make hair look thicker and coarser.

2. Skip Antiperspirants

While they control sweat, many antiperspirants contain chemicals that can cause pigmentation or even inflammation. Instead, carry alcohol-free wet wipes to freshen up after sweating.

3. Exfoliate Regularly

Gentle exfoliation prevents dead skin buildup and keeps the underarm area soft and bright. Choose mild scrubs suitable for sensitive skin.

4. Wear Breathable Clothing

Avoid overly tight tops that constantly rub your underarms. Go for cotton or breathable fabrics that keep the area dry.

5. Use Whitening Moisturisers

Hydration is key to preventing pigmentation. Apply a whitening cream or lotion designed for underarms, especially if you have sensitive skin — stick to mild, low-irritation formulas.

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Can Potatoes, Cucumbers & Baking Soda Really Whiten Underarms? 6 Natural Remedies to Try

If you prefer a more natural approach, here are six popular home remedies that KOLs and beauty bloggers swear by:

1. Potato Juice

Packed with vitamin C, potatoes help brighten and hydrate skin while reducing pigmentation. Slice thin pieces and place them under your arms for 10 minutes, or blend into juice, mix with a little lemon juice, and apply for 10 minutes before rinsing.

2. Cucumber + Lemon Juice

Like potatoes, cucumbers are rich in vitamin C and help fade dark spots. Slice or juice them, then mix with a little lemon juice and turmeric. Apply for 30 minutes, then rinse.

3. Brown Sugar + Olive Oil Scrub

For gentle exfoliation, mix 1 part brown sugar with 3 teaspoons of olive oil. Massage onto damp underarm skin for 1–2 minutes, leave for 5 minutes, then rinse.

4. Honey Mask

Honey deeply moisturises and promotes skin repair. Mix 2 teaspoons of flour, 1 teaspoon baking soda, 1 teaspoon lemon juice, and 1 teaspoon honey. Apply for 20 minutes, then wipe off for instantly smoother skin.

5. Yogurt

Rich in lactic acid, yogurt can help lighten pigmentation. Mix plain yogurt with lemon juice and a pinch of turmeric. Apply for 10–15 minutes before rinsing.

6. Milk + Baking Soda

Milk softens and brightens skin, while baking soda acts as a mild exfoliant. Mix in a 1:2 ratio, apply underarms, let it dry into a mask, then rinse off.

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5 KOL-Approved Armpit Whitening Tips — Just 3 Steps to Brighter Skin!

Whitening your underarms is a long-term battle. It’s not just about stopping melanin production — you also need to brighten the skin and keep it smooth. Neglect any of these aspects, and your results will be far from ideal.

Aside from daily habits and DIY whitening remedies, there’s one underarm whitening method that’s highly recommended by a popular KOL. She swears by this routine to keep her underarms bright and smooth — even up close, there’s no sign of darkness or rough texture!

Step 1: Use a Hair Removal Device

This KOL points out that one of the main causes of underarm darkness is visible hair roots. And what makes them more visible? Shaving with a razor. She strongly suggests avoiding razor-only hair removal.

After shaving, she recommends using a home-use hair removal device to target and remove the hair roots completely.

Many home IPL (Intense Pulsed Light) devices use light-based technology to weaken hair follicles over time. The heat energy slows down hair regrowth, making underarm hair grow back finer and less noticeable.

Razors often can’t fully remove hair at the skin’s surface, leaving tiny dark dots behind. A home IPL device can specifically target these roots after shaving, helping to prevent hair from getting coarser. Over time, this means no more “black dots” — even when viewed up close.

Step 2: Exfoliate Your Underarms

Thick layers of dead skin and keratin not only make your underarm skin rough, but also block whitening products from being absorbed. No matter how much whitening cream you apply, it won’t be effective if exfoliation is skipped.

Choose an exfoliating product based on your skin type — sensitive skin should opt for gentle scrubs, while normal skin can use glycolic acid pads. These pads, soaked in mild glycolic acid solution, can be rubbed in circular motions after hair removal to soften and remove dead skin. Then, leave the pad on your underarm for 3–5 minutes before rinsing with water.

Even for normal skin, avoid pads with overly high acid concentrations — the delicate underarm skin can easily become irritated, which could worsen pigmentation.

Step 3: Apply an Underarm Whitening Cream

Once exfoliation is done, it’s the perfect time to boost brightness. Use whitening skincare products like underarm masks, whitening lotions, or body creams.

Look for ingredients like arbutin, vitamin B3 (niacinamide), and vitamin E. Arbutin and vitamin B3 help fade melanin, while also improving skin hydration. Vitamin E softens hair roots, boosts moisture, and helps the skin feel smooth. With regular use, your underarm skin will stay soft, bright, and healthy-looking.

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For Lasting Results — Use Laser Hair Removal to Eliminate Pigmentation!

If you want fast, visible results, lifestyle changes and whitening creams alone won’t be enough. The ultimate solution? Laser hair removal.

Darkness and roughness are often caused by hair follicles beneath the skin. Laser hair removal destroys the follicles at the root, stopping regrowth and restoring smooth, bright skin.

One standout option is Perfect Medical’s A3 Laser Hair Removal Treatment. Designed specifically for Asian skin, it uses dual cooling technology to remove hair painlessly without harming surrounding skin.

The 10x10mm square applicator ensures full coverage without missing spots, and its 808nm laser energy penetrates deep into the follicle, cutting off blood supply to stop hair growth permanently. Bonus — the laser can also target and break down existing pigmentation, instantly tackling underarm darkness.

Perfect Medical is offering a limited trial package: 6 laser sessions at a special rate, plus a professional hair analysis. Book now to lift your arms anytime with confidence — no more dark patches, no more awkward moments.