Photorejuvenation can improve pores, acne scars and fine lines, tighten skin, fade spots and make skin bright and shiny, which is an ideal choice for beauty seekers nowadays. Photonic rejuvenation is generally divided into treatment period, rejuvenation period and maintenance period. Generally, it needs to be done five times, once every three weeks for 20 minutes each time. Generally, you can see obvious effects after two or three times. Necessary skin care between treatments contributes to skin metabolism and rejuvenation. Tips from Shanghai Hua Gang Hospital: The premise of ensuring the safety and effectiveness of photon rejuvenation is to choose a regular professional plastic surgery hospital.