Mainly divided into laser hair removal, photon hair removal, ipl hair removal, freezing point hair removal, the principle is similar, that is, light energy acts on the root of hair follicle, making hair follicle dormant, making hair stop growing, but these will have strong pain during hair removal. If girls with sensitive skin or fear of pain can consider the buyer to use hair removal instrument, the principle is the same as laser hair removal, but it is milder than laser hair removal, and there is almost no feeling when using it. Some friends around me bought a Grand Hair Removal Instrument, and some friends bought a Jin Mu Hair Removal Instrument. From the perspective of communication and use, Glen's model is mild and effective. Basically, it won't grow hair in about two months.