Published 20 October 2026 · Reviewed by Dr Sin Yong
Hair removal in Singapore, done with a laser, is a question of matching the wavelength to the skin: 755 nm alexandrite for lighter skin, 1064 nm Nd:YAG for darker skin, chosen area by area. This page gathers every guide on the subject: the main treatment page, the area spokes, the wavelength comparison, aftercare and what decides the number of visits. Every session is performed by Dr Sin Yong.
Short answerStart with the main laser hair removal page for how it works and who it suits, then the guide for your area. If your skin is Fitzpatrick IV or darker, read the dark skin guide and the wavelength comparison. Aftercare and the number-of-visits page answer most of the questions that come after a first consultation.
A long-pulsed dual-wavelength laser, 755 nm alexandrite and 1064 nm Nd:YAG, with epidermal cooling, on one device
Wavelength by skin
755 nm for Fitzpatrick I to III and finer hair on lighter skin; 1064 nm for IV to VI, tanned skin, and naturally darker zones such as the underarm and bikini line
Areas
Face, underarm, brazilian and bikini, legs, arms, beard, chest and back, planned together and set independently
Course
Staged across visits timed to the hair cycle of each area; no count is quoted before assessment
Limits
White, grey and very fine hair carry too little pigment for any laser; electrolysis is the alternative and is not offered here
Doctor-led
Every session is performed by Dr Sin Yong, with settings chosen after examining the skin and hair of each area
These guides are written for three kinds of reader. The first has coarse, dark hair somewhere they are tired of shaving or waxing, has read enough to know that laser is the option that reduces regrowth, and wants to know what is involved for their area. The second has darker skin, has been told elsewhere that laser is not suitable or has had a mark from an IPL or diode treatment, and wants to know whether the 1064 nm Nd:YAG changes that answer. The third has started a course elsewhere, often abroad, and wants to continue with finer, lighter hair and records in hand.
Illustrative image — not a patient.
Laser hair removal reduces regrowth in hair that carries pigment. It is not for white, grey or very fine vellus hair, which no wavelength targets reliably, and it is deferred in pregnancy, on tanned or sunburnt skin, over active infection or inflamed folliculitis, and after recent isotretinoin or a photosensitising medicine. New or rapidly increasing hair in a woman is assessed for a hormonal cause before treatment. Each guide below says who it suits and who should wait, and the main laser hair removal page carries the full suitability list.
What the guides have in common is the approach: the wavelength is chosen for the skin of each area rather than once for the whole body, settings are set by Dr Sin Yong after examining the skin and hair, the course is staged to the hair cycle and reviewed each visit, and no count or fee is quoted before assessment. WhatsApp enquiries are answered in English and Chinese.
Every hair removal guide on this site
Start here
Laser hair removal in Singapore: how it works, why the wavelength must match the skin, every area, risks, recovery, suitability and what decides the fee
Face: upper lip, chin and sideburns: fine versus terminal hair, wavelength by facial skin tone, test patches, and when a hormonal cause is checked first
Underarm: why the armpit is set differently, 1064 nm for darker underarm skin, ingrown hairs, deodorant rules, and why hair removal does not lighten dark underarms
Brazilian and bikini: what the area includes, privacy and chaperoning, wavelength by skin tone, ingrown hairs and aftercare
Legs: full leg versus half leg, why visits follow the hair cycle, keratosis pilaris, and the sun rules for shins in Singapore
Beard and neck, for men: shaping versus full removal, razor bumps, Nd:YAG for darker skin, and what regrowth patterns mean
“I do not choose a wavelength for a person. I choose it for an area, because the underarm and the forearm on the same arm are two different skins.”
Dr Sin YongOn laser hair removal
Your next step
1. MessageWhatsApp +65 8023 7170 with what is bothering you. A reply comes from the clinic, not a bot.
2. AssessmentDr Sin Yong examines you himself on Orchard Road, with ultrasound where earlier filler is involved.
3. A plan in writingWhat he would do, what he would not, the fee factors, and the option of no treatment.
Every treatment is performed by Dr Sin Yong personally. Singapore Medical Council registered · invited to share his clinical expertise internationally for CLASSYS, DEKA, Fotona, Hironic and Ilooda.
Book an assessment with Dr Sin Yong on Orchard Road; the areas you want treated are examined one by one and the wavelength chosen for each. How consultations work.
The main laser hair removal page, which explains how it works, why the wavelength has to match the skin, and who it suits. Then the guide for your area: face, underarm, brazilian, legs or beard. If your skin is Fitzpatrick IV or darker, or you have had a mark from a previous laser or IPL, read the dark skin guide and the diode vs alexandrite vs Nd:YAG comparison before booking.
Yes, when the wavelength is matched to it. The 1064 nm Nd:YAG is less absorbed by surface melanin and penetrates deeper, which is why it is the wavelength for Fitzpatrick IV to VI and for tanned skin, with epidermal cooling, a test patch and conservative settings. Most of Singapore sits in Fitzpatrick III to V, so this choice is made area by area rather than once for the whole body.
No number is quoted before assessment, because only follicles in their growth phase respond at any one visit and the share in growth differs by area, by person and by what has been done to the hair before. The course is staged to the hair cycle of each area and the next visit is decided at review. The number-of-sessions guide sets out what decides it: hair cycle, area, colour contrast, hormones and wavelength.
No. Every hair removal laser is absorbed by melanin, and white and grey hair carry none, while very fine vellus hair carries too little to heat the follicle reliably. Those hairs are not promised a response at any number of visits, and treating vellus hair on the face has been linked to paradoxical hypertrichosis. Electrolysis is the alternative for them, treating one follicle at a time; it is not offered here.
References
Laser hair removal: a review. Dermatologic Surgery 39(6), 2013. source
About this page: written and medically reviewed by Dr Sin Yong, MBBS (NUS), MRCS (Edinburgh) · Last reviewed 20 October 2026 · Illustrative images only, not patients · Editorial policy
