Is it safe to use indoor tanning beds for adults managing vitamin D?

What's actually in it

Indoor tanning beds emit UVA and UVB radiation. UVA is the dominant wavelength and doesn't efficiently produce vitamin D. Tanning beds deliver concentrated UV exposure that increases skin cancer risk, especially melanoma. Using them for vitamin D is a misconception that's been persistent in marketing for decades.

Vitamin D levels have other, safer sources.

What the research says

Multiple skin cancer reviews consistently flag indoor tanning as a preventable cancer risk, including the tattoo ink review in Cardiovasc Hematol Disord Drug Targets that contextualizes skin cancer risk factors. The 2026 review on environmental pollutants in osteoarthritis touched on UV as one of many environmental factors affecting joint and skin health.

For vitamin D: moderate sun exposure (15-20 minutes on arms and legs a few times a week, without sunscreen) produces vitamin D naturally. Oral vitamin D3 supplement (1000-4000 IU daily for most adults) is safe and effective. Food sources include fatty fish, egg yolks, and fortified dairy. Blood testing through primary care gives actual vitamin D levels to guide supplementation. Tanning beds do nothing useful that isn't done better by these alternatives.