Does Laser Hair Removal Completely Get Rid of Hair?
Honest answer: laser produces permanent reduction, not permanent removal. After a full course, most patients keep a small amount of fine, sparse regrowth — typically 10–20% of what they started with — and occasional top-up sessions keep it that way. Anyone promising total, forever clearance from a laser is overselling it.
That’s still a substantial change from shaving, waxing or plucking, all of which come with their own trade-offs: ingrown follicles and inflammation from tweezing and shaving, and irritation or chemical burns from depilatory creams.
There are 2 Methods for Permanent Hair Removal
Electrolysis
A fine probe is inserted into each follicle and an electrical current destroys the growth cells. It is the only method classed as permanent hair removal, and it works on any hair colour — including white, grey and blonde, which laser cannot target because there’s no pigment to absorb the light. The trade-off is time: it’s follicle by follicle, so it suits small, defined areas rather than backs and legs, and it’s more uncomfortable than laser.
Laser
High-intensity light or laser is a hair removal method using heat energy from the light to destroy the hair roots. The light can destroy specific hair roots since the hair follicle area has a color-creating cell called Melanocyte, which acts as a light conductor or a light energy absorber to the hair follicle area
Nowadays, Fotona-XP Focus laser technology is an Nd: YAG laser with a wavelength suitable for hair removal. This technology does not cause wounds. It is a very safe laser and has been certified by international standards in Europe and America (US-FDA). Fotona-XP Focus laser can be used effectively for permanent hair removal. It is suitable for all skin colors, including dark skin, without causing wounds or burns. With repeated treatments, the hair will be permanently removed.
The Laser We Use
Kamol Hospital uses a Fotona XP Focus Nd:YAG system.
The Nd:YAG wavelength sits at the deeper end of the spectrum, which is what makes it the appropriate choice for darker skin tones — the beam passes the surface pigment and reaches the follicle without overheating the skin above it. Many older systems can’t safely do this. The skin isn’t broken, so there’s no wound and no scar, and the device carries US FDA clearance and CE marking.
Areas Commonly Treated
- Face and upper lip
- chin and jawline
- neck
- underarms
- arms
- chest and abdomen
- back and shoulders
- bikini line and intimate areas
- legs
- feet and toes
Pre-surgical clearance
Hair reduction in the donor or graft area is often required before gender reassignment surgery, peritoneum vaginoplasty or phalloplasty, and facial clearance is frequently done alongside facial feminization surgery planning. Tell your coordinator if this is your reason for booking — the schedule needs to be built backwards from your surgery date.
How long does Laser Hair Removal take?
It depends on the area. For example, underarm hair removal takes only 2-3 minutes, while treating the back or legs may take approximately 1 hour.
What factors does the treatment depend on?
It depends on hair color and skin type. Dark black hair removal is more effective than lighter hair.
Treatment Time and Sessions
- Time: depends on the area. The underarms take a few minutes, while the back or legs may take about an hour.
- Sessions: each session reduces hair by about 15–30%. Most people need 5–8 sessions, spaced 4–6 weeks apart (facial hair may need more frequent or additional sessions).
- Results: many people achieve long-lasting hair reduction, while some have 10–20% fine, sparse hair remaining. Occasional maintenance sessions may be needed.
- Factors: results are best with dark hair. Light, fine hair responds less well.
Preparing for Your Appointment
- Avoid sun exposure for at least 1 week before treatment.
- Don’t pluck or wax for several weeks beforehand, as the hair root needs to be present.
- Shave the area 1–3 days before treatment.
- Tell your doctor about any medicines, especially those that make your skin sensitive to light.
After Treatment
- Redness and slight swelling around the follicles are common within 30 minutes and usually settle within a day.
- A cool compress can ease any warmth or stinging.
- Avoid irritating products, such as retinoids (Retin-A) or AHAs, for a few days.
- Protect the area from the sun and use sunscreen.
- Treated hairs will gradually shed over about 2 weeks.
Why Choose Kamol Hospital in Bangkok for Hair Removal
Getting this wrong on deeper skin tones causes burns and pigment changes. Nd: YAG at hospital-grade power, operated under medical supervision, is a different proposition from an IPL device in a shopping-mall salon.
Treatment happens inside Kamol Cosmetic Hospital, a licensed private hospital in Bangkok, with doctors available if a reaction needs attention.
Kamol is one of the highest-volume gender-affirming surgery centres in the world. You can plan hair removal alongside FFS, SRS or other treatments during your stay in Bangkok. Our team understands what a surgeon needs cleared, how far in advance, and how to sequence it around an operation date — something a general beauty clinic won’t.
You’ll be told what reduction to expect for your hair colour and skin type, and if electrolysis is the better answer for your hair, you’ll be told that too.
Coordinators speak several languages, and Kamol Trip handles transfers and stays, so a multi-session course can be planned across one or two visits.
Frequently Asked Questions (FAQs)
How many treatments are needed?
Laser hair removal typically destroys 15% to 30% of hair after the first treatment. Generally, it requires 5 to 8 sessions, with treatments spaced every 4-6 weeks. While some individuals experience complete hair disappearance, others may have 10 to 20% fine and sparse hair remaining.
How does the skin change after Laser Hair Removal?
The skin around the pores may become red and slightly swollen within 30 minutes after treatment. This will subside within a day. Applying a cold compress can help reduce the burning sensation. Post-treatment, the skin does not bleed or cause wounds.
How should I care for my skin after Laser Hair Removal?
Avoid using soaps or creams that irritate the skin, such as Retin-A or AHA. Sun exposure should be minimized, and sunscreen should be applied to the treated area.
What happens to the hair after treatment?
Hair will gradually push out of the skin within 2 weeks after treatment.
How should I prepare before Laser Hair Removal?
One week before treatment, avoid unnecessary outdoor activities to prevent sun exposure. Please don’t pluck or wax the hair. If needed, use shaving up to two or three days before laser treatment.
Does it work on white, grey or blonde hair?
No. There’s no pigment for the laser to lock onto. Electrolysis is the alternative for these hair colours, and we’ll say so at consultation rather than sell you a course that won’t work.
Is Thailand a good place to have laser hair removal done?
Bangkok is one of Asia’s busiest markets for laser aesthetics, so both the equipment and the operator experience are current, and a course of sessions costs well below the equivalent in Australia, the UK, the US or the Gulf. Since each session takes minutes with no downtime, appointments slot easily around a holiday or a business trip.
Is it worth flying to Bangkok if I need several sessions?
It depends on your situation. Sessions need four to six weeks between them, so a full course rarely fits in one trip. Patients often start a course during a longer stay in Thailand — commonly alongside other procedures — and complete it over a second visit. If you’re already coming for surgery, adding hair reduction to the same trip makes obvious sense.
