In the early 1990s, Dr. Bruce E.Katz, director of dermatology at Mount Sinai Hospital in the United States, combined the rapidly developing laser dermatology with skin beauty care. Create a world-renowned new female beauty service format MEDSPA and the largest JuvaMedspa Ou Hua skin beauty clinic in the United States. In the 1990s, when the medical field went out of the narrow sense of plastic surgery and dermatology clinical medicine and developed into the field of beauty service, plastic surgery technology and laser skin therapy medicine went hand in hand. Ou Hua's service is modern, and those non-invasive skin treatment technologies are effective, but they are very safe, convenient and fashionable, thus creating a systematic beauty clinic that uses non-surgical dermatology for non-invasive treatment.