Painless IPL Hair Removal DeviceIPL laser pulse hand held hair removal device concept IPL uses light pulses in the 420~1,200 nm area of visible light to act on the melanin of the hair follicle, destroying the growth point of the hair follicle to achieve hair removal. IPL's light energy activates collagen and excludes melanin, which is effective for body weight in melanin concentration Recommended period of use: 2~3 times per week, continuous use 4~6 times (about 2 weeks or more) IPL