Why wavelength matters
Laser hair removal works by sending light into the pigment of the hair. The wavelength decides how strongly that light is absorbed by hair versus the surrounding skin. Shorter wavelengths like alexandrite (755 nm) are absorbed strongly by hair and work very well on fair skin. Longer wavelengths like Nd:YAG (1064 nm) pass the skin's own pigment more safely, which makes them safer for darker skin.
Candela GentleLase Pro
An alexandrite laser with a large spot and a cold spray before each pulse. It is fast on big areas and very effective on dark hair in light to medium skin.
Deka Motus AY
Combines alexandrite and Nd:YAG in one platform. Its Moveo mode glides over the skin and builds heat gradually, so sessions are comfortable and it can treat tanned and darker skin types. It is a good choice for Egyptian skin tones across the range.
Where diode fits
Diode lasers (around 800 to 810 nm) are widely used and can work well. Their wavelength sits between alexandrite and Nd:YAG. Results depend heavily on the specific device, its settings and the operator, not just the label "diode".
Which one is right for you
Skin tone, hair colour and thickness, and recent tanning decide it. At Jothen Clinics the doctor checks your skin before the first session and chooses Candela or Motus AY accordingly.
Written by the Jothen Clinics team. Updated 25 October 2026. This guide is general information. Your branch confirms what suits your skin and hair at your first visit.