New research now reveals that ultra-violet nail lamps may also increase the risk of skin cancer. researchers sampled 17 light units from 16 salons that used a wide variety of UV bulbs. Researchers said that exposure to carcinogenesis remains small, frequent exposure could cause damage. They suggest that wearing sunscreen on the hands or protective UV-A gloves could help reduce any potential cancer risk and prevent signs of premature skin aging.
(Note that this research does not cover the 100s of other chemicals that they use in nail salons.)
Source: JAMA Dermatology.