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

The device targets pigment in a growing hair and heats the follicle. Hair grows in cycles, so one visit cannot treat every follicle at the same stage. The handpiece, cooling method, wavelength, pulse settings, and contact with the skin all affect the experience. Darker hair generally gives the device more pigment to target than very light, grey, or white hair.

A consultation should cover your skin tone, hair colour, recent tanning, medicines, active rashes, and any tendency to form dark marks. A salon device may be described as a laser even when it uses a different light technology, so ask exactly what is being used.

Choose a provider who records your assessment, explains expected reactions, and uses eye protection appropriate to the treatment area. Avoid tanning before treatment and follow the provider's instructions about shaving and skincare. Do not wax or pluck the target hair immediately beforehand because the follicle is the intended target.

Mild warmth, redness, or swelling around hairs can occur after treatment. Keep the area cool, avoid picking, and protect exposed skin from sunlight. Laser hair removal can reduce shaving-related irritation and may help people who develop [Ingrown Hairs](/symptoms/ingrown-hairs/).

Contact a clinician if blisters, marked swelling, severe pain, spreading redness, pus, or worsening skin colour changes develop. Eye pain or vision changes after treatment near the face needs urgent assessment. Delay another session over skin that is infected, blistered, or actively inflamed until it has been reviewed.

Ask which device and wavelength will be used, who will set the energy level, how your skin tone will be protected, and what aftercare is available if a reaction occurs. You can also ask whether an underlying condition such as [Hirsutism](/conditions/hirsutism/) needs assessment when facial or body hair growth has changed.