What should you know about deka alexandrite laser?

Alexandrite laser energy is absorbed more strongly by some pigment targets than by surrounding tissue. In hair treatment, the target is pigment in the follicle; the goal is progressive reduction rather than an instant change to every hair. Results and reaction risk vary with hair colour, skin tone, recent tanning, treatment settings, and the body area.

The device name alone does not tell you which handpiece, settings, cooling method, or indication will be used. Read the technology overview for [Alexandrite Laser](/technology/alexandrite-laser/) and the treatment guide for [Laser Hair Removal](/treatments/laser-and-energy/laser-hair-removal/).

Tell the clinician about recent sun exposure, tanning products, medicines, cold sores, pigment changes, and any history of unusual scarring. Follow instructions about shaving and avoiding waxing or plucking. Do not apply irritating products to the treated area unless the clinic advises them.

After treatment, protect the area from sun, use the recommended soothing care, and avoid picking or rubbing irritated skin. Ask who will perform the treatment and whether a patch test or staged settings are appropriate for your skin type.

Mild warmth, redness, or swelling can occur after energy treatment, but contact the clinic if discomfort is worsening, blisters form, the skin becomes markedly pale or dark, or redness spreads. Seek urgent care for facial swelling, breathing difficulty, or signs of infection.

What is being treated and why is this wavelength suitable? How will my skin tone and recent sun exposure affect settings? What preparation, cooling, aftercare, and warning signs should I expect?