What should you know about a new laser hair removal machine?

Laser energy is absorbed mainly by pigment in the hair shaft and follicle. This heat can reduce the follicle’s ability to produce hair. Because hair cycles through growth phases, a course of appointments is usually needed rather than a single visit. Newer devices may combine contact cooling, larger treatment spots, or adjustable pulse settings to improve comfort and coverage.

Device choice matters. Alexandrite, diode, and Nd:YAG systems use different wavelengths and may suit different combinations of skin tone, hair colour, and treatment area. Very light, grey, or red hair may respond less predictably because it contains less of the target pigment. Laser treatment can also help some people who struggle with ingrown hairs or razor bumps.

Ask which device and wavelength will be used, who will operate it, and how settings will be tested on your skin. Avoid tanning before treatment, follow the clinic’s instructions about shaving, and tell the clinician about medicines, recent skin irritation, tattoos, or a history of pigment changes. Do not wax or pluck the target hairs shortly before treatment because the follicle is the target.

Afterward, mild warmth, redness, or temporary swelling around follicles can occur. Use gentle skincare and protect treated skin from strong sun exposure. Follow the planned interval between sessions so the clinician can treat hairs at an appropriate growth stage.

Contact the treating clinic if blistering, marked swelling, increasing pain, spreading redness, pus, or significant lightening or darkening of the skin develops. Seek urgent medical help for facial swelling with breathing difficulty or widespread hives. A clinician should review persistent irritation before another session is booked.

Which wavelength and cooling method fit my skin tone and hair type? How will you test the settings? What preparation should I follow for this body area, and what changes mean I should postpone treatment?