The technologies
Types of laser hair removal machines
Every machine here works the same way at the follicle: a wavelength that melanin absorbs is delivered in pulses, the follicle heats, and over a course of sessions it stops producing hair. What differs is the light source, which decides which skin types you can treat safely, how fast you can work, and what the machine costs.
Diode lasers (808 nm and multi-wavelength)
The workhorse of the professional market and the bulk of this collection. A single 808 nm diode such as the DK50 handles light to medium skin on a tight budget. Triple-wavelength systems add 755 nm for fine, light hair and 1064 nm for darker skin (AresLite DM20, Aresmix DL900). Quad-wavelength systems add 940 nm as a bridge between the two (AresLite DM40P, DM40PHK, DM50P, AresMix DL1500, AresSmart DL500). Modern diodes run at up to 20 Hz with contact cooling, so a full back or legs is a 20 to 30 minute appointment.
Alexandrite and Nd:YAG
The Alexpulse EL200B and CL300 combine a 755 nm alexandrite source for light skin and fine hair with a 1064 nm Nd:YAG for deeper skin tones, at 5,000 W with a dynamic cooling device. This is the technology behind the best known clinic brands, and the CL300 can be ordered as 755 nm only, 1064 nm only, or both. Expect to pay more than for a diode and to use the extra range on a mixed patient base.
DPL and IPL light systems
The DR10 and DRT10 are pulsed light platforms with narrow-band DPL filters rather than lasers. They are slower on hair than a diode, but one console also covers pigmentation, redness and skin rejuvenation, which suits a spa that wants one machine for several services. Consumer IPL devices use the same principle at a fraction of the energy; see the professional vs at-home section below.