How it works
The mechanism is selective photothermolysis, first described by Anderson and Parrish in 1983: choose a wavelength your target absorbs strongly, deliver it in a pulse matched to how fast the target sheds heat, and you damage the follicle while the surrounding skin stays intact.
At 808nm, melanin in the hair shaft and follicle is the target chromophore. The wavelength penetrates deeply enough to reach the follicle bulb, yet it's absorbed well enough there to build destructive heat. Our device manuals put it plainly: adequate pulse duration, energy density and epidermal cooling together produce thermal damage in the follicle without harming the tissue around it.
In practice you tune three things. Energy density adjusts across a wide range, so fine facial hair and coarse body hair can be treated with the same handpiece. Pulse width runs from short settings for thin hair up to long settings that give darker skin a gentler heating profile. All the while, the constant condenser cooling system keeps the contact tip cold, protecting the epidermis before, during and after every pulse.



