Basic Principle The Multi-wavelength (755 808 1064nm) 3 in 1 Diode Laser Hair Removal system employs a technique that involves the thermal damage of the hair follicular unit, resulting in the inhibition of future hair growth. This is achieved through the use of laser density. The pulse duration of the system is adjustable, ranging from 5-300 milliseconds. This enables the system to produce thermal damage to the hair matrix stem cells, ensuring the destruction of the follicular unit. The system is equipped with a sapphire surface contact cooling tip that provides efficient skin-cooling, minimizing discomfort during the treatment period. This cooling system is particularly useful for patients with dark skin, as it provides better effectiveness for hair removal. What's the difference of 755nm Laser, 808nm Laser and 1064nm Laser? 755nm (Alexandrite Laser) 755nm laser is suitable for light skin types and soft hair. 755nm laser has higher surface penetrating power for bulge of the hair follicle and embedded hair. e.g. eyebrow and beard. 808nm (Diode Laser) 808nm laser is globally recognized as the gold standard for safely treats Fitzpatrick skin type I-VI. 808nm laser is clinically documented and proven to deliver results, and effectively treats the broadest patient group. e.g. chest, back, face, arms and legs. 1064nm (Long Pulsed Nd:YAG Laser) 1064nm laser focus on the solution of dark skin types and tanned skin. 1064nm laser has maximum penetrating power for hair follicle and embedded deeper hair. e.g. hairline, armpit and pubic hair.