A side-by-side comparison of the three laser wavelengths used for permanent hair reduction. The serious provider operates all three. The casual provider operates one and applies it to every candidate.
All laser hair removal works by targeting the melanin in the hair follicle. The laser energy is absorbed by the pigment, converted to heat, and the heat damages the follicle's regenerative structures. The mechanism is the same across platforms. What differs is the wavelength of light delivered, and that single variable determines who can be treated safely and how effectively.
Shorter wavelengths (755 nm alexandrite) are absorbed more efficiently by melanin and produce faster, more effective results, but they cannot be used on darker skin tones because the surrounding pigmented skin would also absorb the energy and burn. Longer wavelengths (1064 nm Nd:YAG) bypass surface melanin and reach the follicle without injuring darker skin. Diode wavelengths (810 nm) sit in between.
A single-wavelength provider, by definition, can only safely and effectively treat a fraction of the population. The serious provider operates all three.
A patient with Fitzpatrick V skin treated with an alexandrite laser is at meaningful risk of burns, hypopigmentation, and post-inflammatory hyperpigmentation. A patient with Fitzpatrick I skin treated with Nd:YAG will see slower, less efficient results than they could have received with alexandrite. Wavelength is not a preference. It is a candidate-specific decision that affects safety and outcome.
Perfect Body Laser & Aesthetics® operates multi-wavelength laser hair removal platforms covering 755 nm alexandrite, 810 nm diode, and 1064 nm Nd:YAG. The team is trained to safely treat Fitzpatrick I through VI, and treatment plans are matched to the individual rather than to whichever platform the center happens to own.