How does laser hair removal work?
Each hair grows in cycles, and only hairs in the active growth phase are firmly attached to a pigmented follicle. Laser light passes through the skin and is absorbed by that pigment, turning into heat that damages the follicle's ability to grow a new hair. Hairs that are resting at the time of treatment are not affected, which is why a course of sessions is needed.
The result is usually described as long-term hair reduction: most people end up with far fewer, finer and lighter hairs, but a few may return over the years, especially with hormonal changes. Occasional maintenance sessions are normal.
Laser hair removal tends to work best on dark hair; very fair, grey, white or red hair has little pigment for the laser to target and responds poorly. People commonly choose it to:
- Stop daily shaving and the bumps or ingrown hairs it causes
- Reduce upper-lip, chin or sideburn hair
- Make underarms smoother and reduce shaving-related darkening
- Simplify grooming of the arms, legs and bikini area
Skin type matters as much as hair colour. Light skin with dark hair gives the clearest contrast, while tanned or darker skin needs more cautious settings so the surrounding skin is not overheated. The doctor checks this at every visit, since a recent holiday tan can change what is safe on the day.
Treatment areas and prices
Prices depend on the area and whether you book a single session or a package. These are some of the most requested areas on our current list:
| Area | 1 session | 5 sessions |
|---|---|---|
| Upper lip, glabella or sideburns | ₩20,000 | ₩75,000 |
| Underarms | ₩30,000 | ₩100,000 |
| Full face | ₩150,000 | ₩400,000 |
| Full arms | ₩150,000 | — |
| Full legs | ₩225,000 | ₩800,000 |
| Female Brazilian (no shaving) | ₩120,000 | ₩400,000 |
| Male Brazilian | ₩180,000 | ₩600,000 |
| Full body | ₩900,000 | — |
Prices in KRW, 10% VAT not included, updated September 2026. A 10-session female Brazilian package is ₩650,000. Full list on the laser hair removal price page.
Brazilian and sensitive areas
The bikini and Brazilian areas have their own page with preparation tips and what to expect: see Brazilian hair removal. If underarm skin has already darkened from shaving, body pico toning can be planned alongside hair removal.
What changes after a course
After each session, treated hairs usually shed over 1–3 weeks and regrowth becomes slower, finer and patchier. Many people see a large reduction after about 5 sessions, though hormonal areas like the face often need more. Smoother skin also makes treatments such as Genesis Toning easier to maintain on the face.
How a laser hair removal visit works
- Doctor consultation We check skin type, hair colour and thickness, recent tanning and medication, and agree areas.
- Preparation The shaved area is cleansed, marked if needed, and you wear eye protection.
- Laser treatment A few minutes for the lip, 20–60 minutes for legs or full body; you feel quick warm snaps.
- Cooling & aftercare Soothing gel and instructions for the next 48 hours.
Because sessions are spaced 4–8 weeks apart, visitors to Seoul often do one session per trip, or start a course here and continue elsewhere. Shave the day before your appointment rather than on the day, so that small nicks have time to settle.
Downtime, side effects and who should wait
Laser hair removal is very common, but settings must match your skin and hair:
- Common: redness and small raised bumps around follicles for a few hours to a day; mild warmth or itching.
- Less common: temporary darker or lighter skin, small crusts, or an acne-like breakout in the treated area.
- Rare: blisters or burns, lasting pigment change, or paradoxical increased hair growth in some areas, such as the face and neck.
Tell the doctor before treatment if you
- Are pregnant or breastfeeding
- Have a recent tan or use self-tanner
- Take isotretinoin or photosensitising medication
- Have a hormonal condition such as PCOS, cold sores in the area, or a tattoo in the treatment zone
Aftercare
Avoid sun, saunas, hot baths and hard exercise for 24–48 hours; do not pluck or wax between sessions (shaving is fine). Use SPF on exposed areas. Message us on WhatsApp if blisters or strong redness appear.
Dr. Jimin Kang, Medical Director
Every laser hair removal plan at Bailor starts with a face-to-face skin assessment by a doctor — not a sales counsellor. Dr. Kang's approach is "tailored, not templated": she chooses the product, dose and depth for your skin, and treats you herself or works alongside the other doctors on our in-house medical team.
Laser hair removal FAQ
How much does laser hair removal cost in Gangnam?
At Bailor Clinic in Sinsa, prices start at ₩20,000 per session for the upper lip and ₩30,000 for underarms, up to ₩900,000 for full body, VAT excluded. A 5-session female Brazilian package is ₩400,000. See the laser hair removal price list.
How many laser hair removal sessions do I need?
Most areas need at least 5 sessions 4–8 weeks apart; the face and hormonal areas often need more. Maintenance sessions may be needed over the years.
Is laser hair removal permanent?
It gives long-term hair reduction rather than guaranteed permanent removal. Most people have far fewer and finer hairs, but some regrowth over time is normal.
Does laser hair removal hurt?
Most people describe a quick warm snap, like a rubber band. Areas with dense hair such as the bikini line feel stronger; cooling and numbing cream can help.
Should I shave before laser hair removal?
Yes, shave the day before. Do not wax, pluck or thread for about 4 weeks beforehand, because the laser needs the hair root in place.
Does it work on blonde or grey hair?
Very light, grey, white or red hair contains little pigment, so the laser usually works poorly. The doctor will tell you honestly at consultation.
