Indoor tanning gets a lot of attention for its risks — and those risks are real and worth understanding. But people search for the benefits of tanning beds for a reason, and there are genuine, research-backed advantages worth covering honestly. Vitamin D production, mood effects, treating certain skin conditions, and the practical consistency of controlled UV exposure all have real evidence behind them.

The goal of this guide is to give you an accurate picture of what indoor tanning can and can’t do — what the research supports, what’s overstated, and what the risks are alongside the benefits. If you’re going to use a tanning bed, going in with accurate information is the most useful thing you can have.

Key Takeaways

Indoor tanning does offer some genuine benefits — including vitamin D production, mood improvement, and relief for certain skin conditions — but these need to be weighed against documented risks
UVB rays from tanning beds stimulate vitamin D synthesis in the skin, though many commercial beds emit primarily UVA and produce less vitamin D than is often claimed
UV light triggers the release of beta-endorphins in the skin, which research has linked to mood improvement — a mechanism similar to natural sunlight exposure
UVB phototherapy is an established medical treatment for psoriasis, eczema, and vitiligo — commercial tanning beds work on a similar principle, though they differ from clinical phototherapy equipment
Tanning beds are classified by the WHO as Group 1 carcinogens — the same category as tobacco — and the melanoma risk, especially for those who begin using beds before age 35, is well-documented
The practical benefits — controlled exposure, year-round availability, and a consistent result — are real but do not reduce the underlying UV risk
Anyone considering indoor tanning should understand their skin type, session limits, and the importance of never burning

Vitamin D Production

This is one of the most frequently cited benefits of indoor tanning, and there is genuine science behind it. When UVB rays from a tanning bed reach the skin, they trigger the synthesis of vitamin D — the same process that happens under natural sunlight. Vitamin D plays an important role in calcium absorption, bone health, immune function, and mood regulation, and deficiency is surprisingly common, particularly in countries with limited winter sunlight.

The important caveat is that not all tanning beds produce meaningful UVB output. Many commercial beds emit predominantly UVA radiation, which produces a tan but contributes far less to vitamin D synthesis than UVB. Research on UVB and vitamin D production confirms that UVB exposure is the key mechanism — so if vitamin D is your goal, the specific bed type matters, and supplementation is often a more reliable and lower-risk alternative for people who are deficient.

For people in northern latitudes during winter months who struggle to maintain adequate vitamin D levels, a UVB-emitting tanning bed used in moderation can contribute to levels in a way that outdoor sun exposure cannot during those months. This is a real benefit — though it needs to be balanced against the UV risks discussed later in this article.

Mood Improvement and Endorphin Release

The mood-lifting effect of UV light has a real biological basis, and it’s more specific than simply “sunshine makes you feel better.” Research published in Cell (Fell et al., 2014) identified a mechanism by which UV exposure stimulates the production of beta-endorphins in the skin — the same class of feel-good hormones released during exercise. These endorphins then enter the bloodstream and produce a measurable mood effect.

This has implications for understanding why some people find tanning genuinely mood-lifting rather than just relaxing. The same mechanism applies to outdoor sunlight exposure, but tanning beds can replicate it in a controlled, weather-independent environment — which is relevant for people in regions with extended periods of low sunlight.

There is also a connection to Seasonal Affective Disorder (SAD), a form of depression that tends to worsen in winter months and has been linked to reduced light exposure. While light therapy for SAD typically uses specific full-spectrum light boxes rather than UV tanning beds, the underlying relationship between light, endorphin production, and mood is genuinely documented.

Relief for Certain Skin Conditions

This is perhaps the most medically supported benefit of UV exposure that often goes unmentioned in tanning content. UVB phototherapy — the controlled application of ultraviolet B light to the skin — is an established clinical treatment for several skin conditions, including psoriasis, eczema, and vitiligo.

Psoriasis in particular responds well to UVB treatment. The UV light slows the rapid skin cell growth that causes psoriatic plaques and reduces inflammation. Eczema sufferers similarly sometimes find that controlled UV exposure reduces inflammation and itching. For vitiligo, UVB phototherapy can help stimulate pigment production in affected areas.

Commercial tanning beds work on broadly similar UV principles to clinical phototherapy equipment, though there are meaningful differences — clinical phototherapy uses precise wavelengths (often narrowband UVB at 311–313nm) under medical supervision, while commercial beds offer less precise control. Some people with these conditions do find that tanning bed use helps manage symptoms between clinical sessions, though this should always be discussed with a dermatologist rather than used as a replacement for prescribed treatment.

Controlled and Consistent UV Exposure

One practical advantage of indoor tanning over outdoor sunbathing is consistency. Outdoor UV exposure varies enormously depending on cloud cover, season, latitude, time of day, and how long you actually stay in the sun — factors that make it genuinely difficult to regulate how much UV your skin receives on any given day.

A tanning bed, by contrast, delivers a known quantity of UV for a set duration. This consistency allows for more deliberate management of exposure levels — important both for people trying to build a gradual base tan before a holiday and for those who burn easily outdoors and want more control over how their skin responds.

The FDA regulates tanning bed UV output and requires salons to follow recommended session limits and provide eye protection. This regulatory framework provides at least some degree of oversight that uncontrolled outdoor sun exposure doesn’t have. That said, controlled UV is still UV — consistency doesn’t eliminate the underlying photodamage risk.

Building a Base Tan Before Sun Exposure

Some people use indoor tanning sessions in the weeks before a holiday to build a base tan — the idea being that existing melanin provides some protection against burning in stronger sunlight abroad.

A base tan does offer a small degree of protection. Research estimates it as roughly equivalent to SPF 2 to 4 — meaning it reduces UV penetration slightly but by no means provides adequate sun protection on its own. It is not a substitute for sunscreen and should not be treated as one. That said, for people who burn very easily, arriving at a sunny destination with some existing melanin can meaningfully reduce the likelihood of burning on the first day.

The practical benefit is real but limited — and the UV exposure required to build the base tan still carries its own cumulative risk. Anyone using this approach should continue to use sunscreen and avoid overexposure once abroad.

Concealing Skin Imperfections

A tan — whether UV-induced or from a spray tan — can visually reduce the appearance of stretch marks, uneven skin tone, and certain scars by making the surrounding skin darker and bringing everything closer to the same shade. This is a cosmetic effect rather than a treatment, but it’s a genuine one that many people value.

For stretch marks in particular, the visual blending effect of a tan is often more noticeable than with untanned skin. The colour contrast that makes stretch marks visible is reduced when the surrounding skin is bronzed. Our guide on whether spray tan covers stretch marks covers this in more detail — the same visual principle applies to UV tanning.

Convenience and Year-Round Availability

For people who live in countries with cold, dark winters — or who simply don’t have time for extended outdoor sunbathing — indoor tanning offers year-round access to UV exposure in a time-efficient format. A typical tanning session takes 10 to 20 minutes, which is significantly more practical than hours of outdoor sunbathing to achieve a similar depth of colour.

Tanning beds are available in spas, gyms, salons, and hotels, and many facilities offer session packages that make regular use cost-effective. For those who prefer the consistency and time efficiency, this practical accessibility is a genuine benefit — separate from any health considerations. You can learn more about the cost side of things in our guide to how much tanning beds cost.

What the Research Says About Risks

An honest article about tanning bed benefits has to address the risks clearly, because they are significant and well-established. This isn’t about discouraging indoor tanning — it’s about making sure you have accurate information to make your own decision.

The World Health Organization classifies tanning beds as Group 1 carcinogens — the highest risk category, the same as tobacco and asbestos. This classification is based on the evidence that UV radiation from tanning beds causes DNA damage in skin cells that can lead to skin cancer, including melanoma.

Research on tanning bed use and melanoma risk has found that the risk of melanoma increases significantly with tanning bed use, particularly for those who begin using beds before age 35 — with some studies estimating the risk increase at around 75%. Further research on skin cancer risk from tanning beds reinforces this finding across multiple study populations.

Beyond skin cancer, cumulative UV exposure from tanning beds contributes to premature skin ageing — collagen breakdown, loss of elasticity, and the kind of textural changes that show up as wrinkles and uneven pigmentation over time. These effects are cumulative and irreversible once they occur.

None of this means the benefits listed above aren’t real. It means they need to be weighed against documented risks — particularly for people with fair skin, a personal or family history of skin cancer, or who are considering regular long-term use.

Who Should Avoid Tanning Beds

Certain groups face meaningfully higher risk from tanning bed use and should either avoid them or consult a doctor before using them:

Skin type I — people who always burn and never tan. Fair skin with very low melanin provides minimal natural protection against UV damage
Under 18 — tanning beds are banned for minors in many countries and states, reflecting the evidence that early use significantly increases lifetime melanoma risk
Personal or family history of skin cancer — additional UV exposure raises an already elevated risk
People on photosensitising medications — certain antibiotics, acne medications (including retinoids and some tetracyclines), and diuretics increase skin sensitivity to UV and can cause severe reactions
Pregnancy — while UV itself doesn’t penetrate to the foetus, the heat of tanning beds can be problematic, and the hormonal changes of pregnancy can cause unpredictable skin reactions to UV
Those with a large number of moles or atypical moles — a higher mole count combined with UV exposure increases melanoma risk

How to Use a Tanning Bed More Safely

If you choose to use indoor tanning, the following practices reduce — though do not eliminate — the associated risks:

Never exceed the recommended session time for your skin type — start shorter than you think you need and build gradually
Follow the FDA recommendation of no more than one session per day, and ideally limit sessions to two to three times per week maximum
Always use the protective eyewear provided — UV exposure without eye protection significantly raises the risk of cataracts and corneal damage
Never tan to the point of burning — a burn is a clear signal that DNA damage has occurred, and it substantially increases skin cancer risk with each occurrence
Know your skin type and choose session lengths accordingly — fairer skin requires shorter sessions and longer intervals between them
Take breaks from indoor tanning rather than using it year-round without pause

For guidance on session frequency, our guide on tanning two days in a row covers the recommended intervals in detail.

Frequently Asked Questions

Are tanning beds safe in moderation?

Moderation reduces but does not eliminate the risks associated with tanning beds. UV exposure from tanning beds causes cumulative DNA damage to skin cells regardless of session length — the risk is lower with fewer and shorter sessions, but there is no established fully “safe” level of tanning bed use. The WHO’s Group 1 carcinogen classification applies to tanning bed use generally. For people who choose to use them, minimising frequency, never burning, and using proper eye protection are the most important risk-reduction steps.

Do tanning beds actually produce vitamin D?

Yes, but only if the bed emits meaningful UVB radiation. Many commercial tanning beds use predominantly UVA lamps to produce a faster tan with less burning risk — but UVA contributes very little to vitamin D synthesis. If vitamin D production is your primary goal, check with the salon whether their beds emit UVB, or consider that supplementation offers the same benefit without UV exposure.

How often should you use a tanning bed?

Tanning professionals and the FDA recommend no more than one session per day and generally no more than two to three times per week. Starting with shorter sessions and building gradually is safer than jumping to maximum session times. Taking regular breaks from indoor tanning — rather than using beds continuously throughout the year — also reduces cumulative exposure.

Can tanning beds help with psoriasis?

UV light — particularly UVB — is a medically established treatment for psoriasis and is used in clinical phototherapy settings. Some people find that commercial tanning beds help manage symptoms, though clinical phototherapy uses more precisely controlled wavelengths than commercial beds. Anyone using indoor tanning to manage a skin condition should discuss it with their dermatologist rather than replacing prescribed treatment.

Is indoor tanning better than outdoor sun for your skin?

Neither is inherently better or worse for skin health — both expose the skin to UV radiation that causes the same photodamage over time. Indoor tanning offers more consistent, controllable dosing and avoids the unpredictability of outdoor UV levels. Outdoor sun, by contrast, provides a broader spectrum of light including visible light, which has its own effects, and avoids the enclosed environment of a tanning bed. The underlying UV risk is comparable.

Can you get a vitamin D benefit from a tanning bed without increasing skin cancer risk?

This is difficult to achieve in practice. The UV exposure required to produce meaningful vitamin D also causes the same DNA damage to skin cells that increases skin cancer risk over time. For people who are vitamin D deficient, supplementation provides the benefit without the UV exposure. If UV-based vitamin D production is important to you, shorter sessions in UVB-emitting beds reduce — but don’t eliminate — the associated risk.

Do tanning beds help with Seasonal Affective Disorder?

The mood effects of UV exposure have a real biological basis — UV light triggers beta-endorphin production in the skin. However, clinical treatment for Seasonal Affective Disorder typically uses bright full-spectrum light therapy boxes rather than UV tanning beds. Light therapy boxes provide mood benefits through the visible light spectrum without UV exposure, making them a lower-risk option specifically for managing SAD. Tanning beds may provide some mood benefit via the endorphin mechanism, but they are not a clinically recommended SAD treatment.

Conclusion

The benefits of indoor tanning — vitamin D production, mood improvement, relief for certain skin conditions, consistent controlled exposure, and practical year-round convenience — are real and worth acknowledging honestly. So are the risks. The WHO’s Group 1 carcinogen classification and the evidence on melanoma risk aren’t things a balanced article can gloss over.

The most useful takeaway is this: indoor tanning has genuine benefits for some people in some contexts, and it carries genuine risks that increase with frequency and accumulated exposure. Going in with accurate information on both sides — rather than an article that only covers one — is what allows you to make a genuinely informed choice.

If you’re exploring tanning options, our full tanning beds guide section covers everything from session frequency and safety to equipment options and costs.

References

UV Light, Beta-Endorphins, and Mood:
Fell, G. L., Robinson, K. C., Mao, J., Woolf, C. J., & Fisher, D. E. (2014). Cell. “Skin Beta-Endorphin Mediates Addiction to UV Light.” Research identifying the mechanism by which UV exposure stimulates beta-endorphin production in the skin — providing a biological basis for the mood-lifting effects associated with UV light exposure.

Vitamin D and UVB Exposure:
Holick, M. F. (2008). Clinical Journal of the American Society of Nephrology. “Vitamin D and Sunlight: Strategies for Cancer Prevention and Other Health Benefits.” Research on the role of UVB radiation in triggering vitamin D synthesis in the skin, including the distinction between UVA and UVB contributions to vitamin D production.

Tanning Beds and Melanoma Risk:
Gallagher, R. P., et al. (2005). International Journal of Cancer. “Tanning Beds, Sunlamps, and Risk of Cutaneous Malignant Melanoma.” Study examining the association between tanning bed use and melanoma risk, with specific findings relating to age of first use and frequency of use.

Skin Cancer Risk from Tanning Beds — Further Evidence:
Research on skin cancer risk associated with indoor tanning bed use (2021). Journal of the American Academy of Dermatology. Further research examining skin cancer incidence and indoor tanning behaviour across study populations, reinforcing the established evidence on UV carcinogenicity from tanning bed use.

WHO Classification — Tanning Beds as Carcinogens:
World Health Organization. “Ultraviolet Radiation.” WHO Fact Sheet. WHO fact sheet covering the classification of tanning devices as Group 1 carcinogens by the International Agency for Research on Cancer (IARC), alongside global UV safety guidance.