... low power laser, gently and tiny.2) asepsis: only act on body surface, meanwhile3)no harm: laser only irradiate acupuncture ... reverberated; shortwave infrared can penetrate 10mm below skin surface and act on blood vessel, lymphatic, nerve ending and other subcutaneous ... laser, apply herbalist doctor acupuncture medicine principle. It can act on acupuncture point, through infrared laser energy, even do ...