Laser Hair Removal · Suitability · Pacific Plaza
Is laser hair removal suitable for me? For most people with dark or medium-brown hair, yes, provided the skin is untanned and intact and the wavelength matches the skin tone. At Atelier, Dr Sin Yong answers the question area by area, because hair colour, skin tone and hormones can differ between the face, underarm and legs of one person.
Hair colour decides whether there is a target; skin tone decides which wavelength is safe; hormones decide whether hair keeps being replaced after a course. If your hair carries pigment and your skin is neither freshly tanned nor broken, you are usually suitable.
Hair Colour
The laser does not see hair; it sees melanin in the shaft, which absorbs the light and carries heat to the follicle. Dark and medium-brown hair holds enough. Blonde, red, grey and white hairs hold little or none, so the follicle is not heated enough at any setting or number of visits. That is not a safety issue; there is simply no target.
Fine, light-brown hair on fair skin sits in between: 755 nm alexandrite can reach it, but results are more modest. Very fine facial down is left alone, because treating it has been linked to paradoxical hypertrichosis, nearby hair growing coarser. Electrolysis, which does not rely on pigment, is not offered at Atelier.
Skin Type
Melanin in the skin competes with melanin in the hair for the same light. Every skin tone can be treated once the wavelength matches: 755 nm for lighter skin with dark hair, and long-pulsed 1064 nm Nd:YAG for Fitzpatrick IV to VI, which surface pigment absorbs less, with cooling and often a test patch; see laser hair removal for darker skin.
A fresh tan or self-tan shifts your skin type for a while and diverts energy from the follicle, so treatment waits. Tone differs by area, too.
Hormones
Laser reduces the follicles it reaches but not the hormonal signal behind growth. Where androgens drive hair, on the chin, jawline, upper lip or lower abdomen in some women, new follicles can be recruited after a course; polycystic ovary syndrome is the commonest cause. That is the condition continuing, not the laser failing.
An Endocrine Society guideline advises looking for the cause when hair is new or increasing quickly, especially with irregular periods, adult acne or scalp thinning. A medical work-up then comes first, with laser alongside, as on facial laser hair removal.
At A Glance
Recent isotretinoin is judged case by case: a 2017 systematic analysis with consensus recommendations found no evidence for a long delay before non-ablative laser hair removal; see isotretinoin and laser timing.
| Your situation | What usually happens |
|---|---|
| Dark or medium-brown hair, untanned skin | Usually suitable; wavelength set by skin tone |
| Fresh tan, sunburn or self-tan | Wait until it fades |
| Pregnancy | Deferred; not studied in pregnancy |
| Infection, cold sore, eczema or broken skin there | Treated first |
| Recent isotretinoin or a sun-sensitising medicine | Discussed; a test patch may be used |
| Vitiligo, keloids, or darkening after earlier laser or IPL | Caution, or a different plan |
| Tattoos or dark moles in the area | Avoided; changing moles checked first |
| Blonde, red, grey or white hair; facial down | Not treated |
At Atelier
Dr SY looks at each area: hair colour and thickness, skin tone there rather than on your face, recent sun, medicines, hormones, and earlier laser or IPL. If the likely result is modest, you hear that before anything is booked. Where there is doubt, a test patch is read after a delay. A suitable area then follows the staged course on the laser hair removal page, timed as how many laser hair removal sessions describes.
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Atelier Aesthetics · Owned by AYA
9 Scotts Road, Pacific Plaza #12-01A, Singapore 228210 · +65 8023 7170
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