How to choose a hair removal instrument?

Mainly based on instrument wavelength

The hair removal instruments used in clinical practice have a wavelength range of 694-1200m, which can be well absorbed by melanin in the hair follicles while ensuring its penetration depth into the hair follicles. From the perspective of therapeutic effects, the efficacy of semiconductor lasers and various strong pulse lights is basically similar. Under the same treatment frequency, the efficacy of long pulse Nd: YAG lasers may be slightly worse than that of semiconductor lasers and strong pulse lights. The ideal pulse width range for pulse width laser hair removal is 10-100ms or even longer, and it can even increase to hundreds of milliseconds for people with deep skin color, making it safer.