​Artificial nails, including gel nails, can pose several health concerns. Here are some potential risks:​

1. UV Light Exposure: Gel manicures often require curing under ultraviolet (UV) lamps, which emit UV-A rays. Prolonged exposure to these rays can lead to skin damage and increase the risk of skin cancer. While the risk from occasional manicures is considered low, frequent use may elevate this risk. ​MD Anderson Cancer Center

2. Nail Damage: Improper application or removal of artificial nails can cause nail thinning, peeling, or weakening. This damage may make natural nails more susceptible to infections and other issues. ​SELF

3. Chemical Exposure: Products used in artificial nail application, such as nail glues and acrylics, contain chemicals that can cause allergic reactions or skin irritation. ​People.com

4. Infections: Artificial nails can trap moisture and create an environment conducive to bacterial or fungal growth, potentially leading to infections. ​SELF

5. Magnetic Particle Concerns: Some gel polishes, like those used for "cat eye" manicures, contain magnetic particles. These can interfere with medical procedures such as MRI scans, posing potential risks. ​People.com

To minimize these risks, it's advisable to limit the frequency of artificial nail applications, ensure proper application and removal techniques, use broad-spectrum sunscreen on hands during UV curing, and maintain good nail hygiene.