The power of lasers directly affects the interaction between lasers and the human body, and different laser wavelengths have different effects on biological tissues. The medical beauty market includes all lasers used in ophthalmology, surgery, dentistry, skin, hair, and other cosmetic procedures. In the well-known field of laser skin rejuvenation, the principle is to select lasers with a high absorption rate in human tissues, utilize their stimulating effect on biological tissues, and deliver fractional laser beams to the skin to create numerous micro-treatment zones. These micro-treatment zones are vaporized and receive thermal damage, initiating the skin's wound healing mechanism, allowing the regeneration of the epidermis, and promoting collagen synthesis in the dermis through thermal stimulation. Hongzhao specializes in the research and development of medical laser fibers, and related products have been extended to the field of medical beauty. They meet the requirements of various lasers, such as thulium lasers, holmium lasers, erbium lasers, and demonstrate great effectiveness in their applications.