Underarm Laser Hair Removal in Bangkok: Price, Sessions and Pain
Underarm laser hair removal in Bangkok usually costs about ฿400–1,500 per session, and most people need 6–8 sessions, 4–6 weeks apart. At Velalux Clinic in Thonglor it starts at ฿900 per session, using an Nd:YAG laser with a cooling jet that makes it much less painful.
Key points
- Sessions: 6–8 for most people, sometimes up to 10, every 4–6 weeks.
- Pain: a quick snap and warmth; the cooling jet takes most of the sting away.
- Price: from ฿900 per session at Velalux. Promotion until 31 October 2026: 5 armpit + 5 brightening sessions for ฿4,000.
- Results: long-term hair reduction, not a guarantee that every hair is gone.
How many underarm laser sessions do you need?
Most people need 6–8 underarm laser sessions, spaced 4–6 weeks apart, and some need up to 10. Hair grows in cycles and the laser only affects hairs in the active growth phase, so each session catches a new group. You will usually see thinner, slower hair after the first 2–3 sessions.
| After | What most people notice |
|---|---|
| Session 1 | Treated hairs fall out over 1–3 weeks. Regrowth still comes back. |
| Session 3 | Hair is thinner and grows back more slowly. You shave less often. |
| Session 6 | Much less hair. Many people barely need to shave. |
| Session 8 | Most hair is gone. A few fine or light hairs may remain. |
Results vary with hair colour, thickness and hormones. Coarse, dark underarm hair usually responds well.
Does underarm laser hurt?
Underarm laser feels like a quick snap on the skin, like a rubber band, followed by warmth. The underarm is one of the more sensitive areas because the hair is thick and dense. At Velalux Clinic, every hair removal laser is Nd:YAG with a cooling jet, which makes treatment much less painful.
You may have read that YAG lasers hurt more than diode lasers. The Nd:YAG light reaches deep into the hair root, so without cooling the snap can feel stronger. The cooling jet blows cold air onto the skin throughout the treatment. It cools the surface and draws heat away, so most people describe the feeling as mild and quick. Both underarms take about 10–15 minutes.
How much does underarm laser cost in Bangkok?
Underarm laser in Bangkok costs about ฿400–1,500 per session. Price depends on the laser type, the clinic and whether you buy a package. At Velalux Clinic, a single session starts at ฿900, and the current promotion gives 5 armpit laser sessions plus 5 brightening laser sessions for ฿4,000 until 31 October 2026.
| Option | Price | What you get |
|---|---|---|
| Typical Bangkok clinic | About ฿400–1,500 per session | Depends on laser type and package; first-visit deals are often cheaper |
| Velalux Clinic, single session | From ฿900 | Nd:YAG laser with cooling jet, assessed by a doctor |
| Velalux promotion (until 31 Oct 2026) | ฿4,000 (normal ฿12,000) | 5 armpit laser + 5 brightening laser sessions |
When you compare prices, compare the full course, not one session. Five sessions is a strong start; most people need a few more to finish. Want the Brazilian area done too? The Brazilian + armpit package (10 Brazilian, 5 armpit, 5 brightening) is ฿19,000 (normal ฿34,500) until 31 October 2026.
Is underarm laser hair removal permanent?
Laser gives long-term hair reduction, not a promise that every hair is gone forever. The US FDA calls it “permanent hair reduction”: fewer hairs grow back over the long term after a full course. Most people keep a few fine hairs, and some need a top-up session once or twice a year.
Hormone changes, such as pregnancy or polycystic ovary syndrome (PCOS), can wake up new hair follicles. That is why a small amount of regrowth years later is normal and not a sign that the laser failed.
Nd:YAG, diode or IPL: which suits Thai skin?
For Thai and other Asian skin, Nd:YAG is often the first choice because its long wavelength (1064 nm) passes the pigment in the skin surface and heats the hair root with less risk of burns or dark marks. Diode lasers also work well, especially on lighter skin. IPL is not a laser and usually needs more sessions.
| Nd:YAG (1064 nm) | Diode (about 810 nm) | IPL | |
|---|---|---|---|
| Type of light | Laser | Laser | Broad light, not a laser |
| Skin tone | Light to dark, including tanned skin | Light to medium; darker skin with care | Light skin with dark hair |
| Hair type | Dark, coarse hair (like underarm hair) | Dark hair, medium to coarse | Dark hair |
| How it feels | Stronger snap without cooling; comfortable with a cooling jet | Usually mild, with contact cooling | Varies |
| Fine or light hair | Less effective | Less effective | Less effective |
Compared with shaving, waxing or creams, which last days to weeks, a full laser course reduces hair for the long term.
Can laser help underarms that look darker from shaving?
Yes, it often helps. Frequent shaving, friction and ingrown hairs irritate the skin, which can leave it darker, and the stubble under the skin adds a grey shadow. Laser hair removal means you stop shaving, so the irritation settles. A brightening laser can help the skin tone look more even.
This is why the Velalux armpit promotion includes 5 brightening laser sessions with the 5 hair removal sessions. The brightening laser is also Nd:YAG with a cooling jet. Results vary from person to person.
If the skin is thick, velvety and dark, see a doctor first. This can be acanthosis nigricans, which is linked to insulin resistance and needs a different approach.
How to prepare, and how to look after your skin afterwards
Shave the underarms the day before, and don't pluck or wax for 4–6 weeks before your first session, because the laser needs the root in place. Afterwards, skip deodorant and heat for 24 hours and protect the skin from the sun.
- Before: shave 1 day before. No plucking, waxing or hair removal cream between sessions.
- Before: tell the doctor about any medicine, recent tanning or skin problems.
- After: no deodorant or antiperspirant for 24 hours, especially ones with alcohol.
- After: avoid saunas, hot baths and hard exercise for 24 hours.
- After: treated hairs shed over 1–3 weeks. Don't pull them out.
What are the side effects, and who should wait?
Most people have mild redness and small bumps around the hair follicles for a few hours to a day. Rare side effects include blisters, burns and darker or lighter patches, which are more likely on tanned or irritated skin. A doctor's assessment and correct settings keep the risk low.
Wait and talk to a doctor first if you:
- are pregnant
- have sunburn, a fresh tan or broken skin in the area
- have an active skin infection or eczema in the underarm
- have taken isotretinoin recently, or use medicine that makes skin sensitive to light
- have a history of keloid scars
Why hasn't laser worked for you?
When underarm laser doesn't seem to work, the usual reasons are too few sessions, sessions spaced too far apart or too close together, or plucking and waxing between visits. Fine or light hair, hormones and low-power devices also play a part.
- You stopped after 3–4 sessions, before most follicles were treated.
- You plucked or waxed between sessions, which removes the root the laser needs.
- The remaining hairs are fine or light, which lasers target less well.
- The treatment was IPL or a low-power home device rather than a medical laser.
Small rough bumps on the upper arms are usually keratosis pilaris, a different skin condition that laser hair removal does not treat directly.
How to choose a clinic for underarm laser
Choose a clinic where a doctor checks your skin first, the laser type suits your skin tone, and the full-course price is clear. Ask which laser they use, how they cool the skin, and what happens if you react badly.
- A doctor assesses your skin and hair before the first session.
- They name the laser (for example Nd:YAG 1064 nm) and explain why it suits you.
- There is skin cooling during treatment.
- The price for a full course is written down, including the promotion end date.
- They give aftercare advice and a way to contact them.
Velalux Clinic is inside Park Origin Thonglor. Read more about the clinic or see all laser treatments and prices.
Frequently asked questions
Can men have underarm laser?
Yes. Men's underarm hair is usually coarse and dark, which responds well to Nd:YAG laser. Men may need a few more sessions than women because the hair is denser.
When can I use deodorant after underarm laser?
Wait 24 hours. Deodorant, especially one with alcohol, can sting freshly treated skin.
Can I have underarm laser during my period?
Yes. Your period doesn't affect underarm treatment, although some people feel more sensitive during their period.
How far apart should underarm laser sessions be?
Every 4–6 weeks. This matches the hair growth cycle, so each session treats a new group of growing hairs.
How long does an underarm laser session take?
About 10–15 minutes for both underarms, plus a short skin check with the doctor.
Are 7 sessions enough?
For many people, 6–8 sessions give a good result. Some need up to 10, plus an occasional top-up session.
Consult a doctor on LINE @velaluxclinic or call +66 99 625 5556
Medically reviewed by Dr. Siwakorn Techataweewat (Thai medical licence ว.72193), Velalux Clinic. Last updated: 29 September 2026.
Sources
- American Academy of Dermatology. Laser hair removal: FAQs.
- Gan SD, Graber EM. Laser hair removal: a review. Dermatologic Surgery. 2013;39(6):823–838.
- Dorgham NA, Dorgham DA. Lasers for reduction of unwanted hair in skin of colour: a systematic review and meta-analysis. J Eur Acad Dermatol Venereol. 2020;34(5):948–955.
- U.S. Food and Drug Administration. 510(k) clearance K180353, diode laser hair removal device (definition of permanent hair reduction).
- สถาบันโรคผิวหนัง กรมการแพทย์. Long-pulsed Nd:YAG for hair removal (iod.go.th).
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