... light, around 15 to 20 minutes per time. The treatment range 1. Removal: Whelk, Macula, and Folliculitis 2. Improvement: ... Wrinkle, Gray complexion etc. 3. Improve facial nerve anaesthesia, Relieve pressure, and improve sleeping. 4. Dispel: Fleck, Sunburn, and Age ... , do not need to change the whole head. 5. Simple operation, no need of professional training. 6. Long life time, steady capability, ...