Nail lights, also known as nail phototherapy. It is dedicated to the drying of glue in the nail process, and is mostly used for nail salon. Because one of the nail lights is UV light source, a study published on December 16th in the "Cancer" magazine in the United States shows that it is used for professional and individual nail equipment; UV (UV) nail lights will not increase skin cancer. risks of. Dr. Alina Markova and Dr. Martin A. Weinstock compared the radiation of the narrow spectrum UVB photobatt therapy (NBUVB) exposed by three common UV nail lights. Test the effective radiation of each device with a spectral spectrum (SCP-H) on the carcinogenic effect. Every ten minutes, the effect of effective radiation in the carcinogenic substances of ultraviolet nail lights per section will be detected. SCP-H is used to determine the radiation volume in the process of UV nail lights with potential carcinogenicity and radiation in each individual narrow spectral light therapy. Researchers found UVA lights mainly emit UVA rays without UVB rays and UVC rays. The highest spectrum radiation energy produced by ray A, ray B (containing fluorescent lamps) and ray C (including luminous diode): 15253, 15202, and 2845 mWM-2, respectively. The research results of the three ultraviolet nail lights show that nail light nail exposure is a single narrow spectrum irradiation within a local area, which does not increase the clinical significance of increased the risk of skin cancer.