I made it at the end of last year. I did it once, but it didn't work at all. I consulted a doctor and the doctor said that my skin is different. If it doesn't work, I don't recommend continuing. Later, I asked several people who made photons together in the hospital that day. The other said that he had done it three times, but it didn't work. I feel much better. In addition, it is very expensive to do photon rejuvenation in Peking University Hospital. Maybe the technical value of the instrument is different from that of the doctor. Peking University Hospital uses the heart of a king.