Just when you thought that getting a manicure was doing something good for you. Truth is it’s deadly and linked to cancer.

Ultraviolet radiation-emitting nail lamps have become a regular part of most trips to the nail salon.

These lamps are typically used to speed-dry regular manicures, and they are actually necessary to set gel manicures.

Some nail lamps are called “UV” lamps, and some are called LED lamps, but both emit UV radiation. They predominantly produce UVA rays, which have been linked to both premature skin aging and skin cancer.

These UV Lamps are not as bad but still on par with UV tanning devices. To play it safe with gel manicures, The Skin Cancer Foundation recommends applying a broad spectrum (UVA/UVB) sunscreen to hands 20 minutes prior to UV light exposure.

If getting a regular manicure, the safest bet is to allow nails to air-dry naturally, avoiding the drying lamps altogether. Remember, all nail lamps produce UV radiation.