By LIV Clinic · Medically reviewed by Dr. Narathai Vichienkalayarut, M.D. · Published September 7, 2026

If shaving leaves you with bumps instead of smooth skin, the fix may be removing the cause rather than shaving more carefully.

Is laser hair removal good for ingrown hairs? Yes — it is one of the most effective options. By reducing hair density and thinning the hairs that remain, laser addresses the root cause of ingrown hairs and razor bumps, and research shows long-pulsed Nd:YAG reduces the severity of pseudofolliculitis barbae.

Why ingrown hairs happen

Hair curling back

Ingrown hairs occur when a hair curls back or grows sideways into the skin instead of out of it, triggering an inflammatory reaction — the familiar red bump.

Who gets them most

They are most common with coarse, tightly curled hair, and in frequently shaved areas such as the beard line, neck, underarms and bikini area.

Why shaving and waxing perpetuate them

Sharp regrowth edges

Shaving leaves a cut hair with a sharp tip that can re-enter the skin, while waxing can break hairs or distort the follicle.

A repeating cycle

Because both methods keep hair growing back, the underlying cause never goes away — which is why the bumps keep returning.

How laser breaks the cycle

Fewer, finer hairs

Laser reduces the number of hairs and thins the ones that remain, so there is less coarse hair to curl back into the skin.

Treating the cause

Unlike creams or exfoliation, which manage symptoms, laser addresses the underlying source of the problem.

What the research shows

Razor bumps specifically

Pseudofolliculitis barbae (PFB) is the clinical name for razor bumps. A clinical trial protocol notes that in refractory cases, permanent laser hair removal with long-pulse Nd:YAG has been shown to decrease PFB severity in dark-skinned individuals.

Why Nd:YAG

The same source notes this wavelength is safe and effective for Fitzpatrick IV–VI skin thanks to its deeper penetration — relevant since PFB is most common in those with tightly curled hair.

Areas that benefit most

The beard line and bikini area are the most commonly treated for this reason.

What improvement looks like

Over a course of treatment, most people notice:

• Fewer new ingrown hairs forming
• Less redness and irritation after shaving
• Smoother skin texture in the treated area
• Reduced dark marks from past inflammation over time
• Less need to shave frequently

Managing existing bumps

Treat active inflammation first

Very inflamed or infected areas may need to settle before laser treatment, so mention any active flare at consultation.

Existing dark marks

Post-inflammatory marks from past ingrowns fade slowly and may need separate treatment — laser reduces new ones forming rather than erasing old marks.

Getting the best result for ingrown hairs

A practical approach:

1. Mention ingrown hairs specifically at your consultation.
2. Let any active inflammation or infection settle before treatment.
3. Shave rather than wax or pluck between sessions.
4. Complete the full course so hair density genuinely reduces.
5. Use gentle exfoliation between sessions if advised.
6. Use daily sun protection to help marks fade.

Treating ingrown hairs at LIV Clinic Koh Samui

At LIV Clinic, laser hair removal for ingrown hairs and razor bumps is doctor-led by Dr. Narathai. Read about laser hair removal for men, or book a consultation.

Frequently asked questions

Safety and consultation

Laser hair removal is a medical laser procedure and, like any energy-based treatment, carries some risk — common temporary effects can include redness, mild swelling around the follicles and a warm sensation, while less common effects such as pigment changes or blistering are minimised by correct laser choice and settings. Results vary from person to person, and no specific outcome can be promised. This article is general information, not medical advice.

At LIV Clinic, every treatment begins with an in-person assessment by Dr. Narathai Vichienkalayarut, M.D., who reviews your skin, medical history and goals before recommending a personalized plan. Book a consultation to find out whether this treatment suits you.