The answer depends on the type of tanning you’re doing — and getting the timing wrong is one of the most common reasons people end up with an uneven result or a tan that doesn’t last as long as it should.

For sun tanning: apply a regular moisturiser at least 20 to 30 minutes before going out, and apply sunscreen 15 to 30 minutes before UV exposure so it has time to properly bond to the skin. For tanning beds: apply your tanning bed lotion 15 to 20 minutes before your session. For spray tanning: no lotion at all on the day — moisturise consistently in the days leading up to your appointment, but arrive with completely product-free skin.

Each method has a different reason for its timing, and understanding the why makes it easier to get the routine right every time. Here’s the full breakdown.

Key Takeaways

For sun tanning, apply regular moisturiser 20 to 30 minutes before going outside; apply sunscreen 15 to 30 minutes before UV exposure
For tanning beds, apply tanning bed lotion 15 to 20 minutes before your session — not immediately before getting in
For spray tanning, apply no lotion at all on the day — but moisturise daily in the 2 to 3 days before your appointment
Moisturising before a tan creates an even skin surface that helps the tan develop more smoothly and fade more evenly
Sunscreen should be applied at least 15 minutes before sun exposure to allow the formula to properly bind to the skin — applying it right before stepping outside reduces its effectiveness
Tanning bed lotions are a separate category from regular moisturisers — bronzers, accelerators, tinglers, and maximizers each work differently and have different purposes
Always avoid mineral oil, alcohol, artificial fragrance, and exfoliating ingredients in any lotion applied before tanning
The night before your session is the best time for a thorough moisturising and exfoliation routine

Why Moisturising Before a Tan Matters

Well-hydrated skin creates a smoother, more even surface for a tan to develop on — regardless of whether you’re tanning outdoors, in a bed, or with a spray solution. The reason comes down to the behaviour of the outermost skin layer.

Dry skin has more irregular, rough dead skin cells sitting on the surface, particularly in areas like elbows, knees, ankles, and knuckles. These cells are in different stages of shedding, creating an uneven surface that absorbs tanning products unevenly and causes the tan to fade patchily in those spots. Consistently moisturised skin has a smoother, more uniform outer layer — and that evenness produces a better result with every tanning method.

For spray tanning specifically, this matters because DHA — the active ingredient — reacts with amino acids in the outermost dead skin cells. Dry skin tends to have dense clusters of dead cells in rough patches, which absorb DHA more heavily and produce darker, uneven spots. Well-hydrated skin distributes the reaction more evenly across the skin surface.

For UV tanning — whether outdoors or in a bed — moisturising doesn’t change how deeply UV penetrates the skin, but it does influence how evenly the resulting tan develops and fades. Hydrated skin produces a more consistent melanin response across the surface and holds the tan for longer as cells shed more slowly and evenly.

How Long Before Sun Tanning Should You Apply Lotion?

Regular Moisturiser

Apply a regular body moisturiser at least 20 to 30 minutes before going outside to tan. This gives the product time to absorb into the skin rather than sitting on the surface — lotion applied immediately before sun exposure can create a slight barrier effect and, in the case of oil-heavy formulas, may actually cause the skin to heat up faster without improving the tan result.

Fragrance-free, lightweight formulas work best as a pre-sun moisturiser. Avoid anything oil-heavy or with a very thick consistency applied directly before sun exposure — these can feel uncomfortable in the heat and may cause uneven absorption of any tanning oil you apply on top.

Sunscreen Timing — Why 15 to 30 Minutes Matters

Sunscreen is not the same as moisturiser in terms of timing. Chemical sunscreens — the most common type, containing ingredients like avobenzone, octinoxate, or oxybenzone — need 15 to 30 minutes after application to fully absorb and chemically bind to the skin before they provide effective UV protection. Applying sunscreen and walking outside immediately significantly reduces its effectiveness, even if the SPF number on the bottle is high.

The FDA and most dermatology guidelines recommend applying broad-spectrum sunscreen of at least SPF 30 before any extended sun exposure. SPF 30 blocks approximately 97% of UVB rays, and reapplying every two hours maintains that protection throughout a session outdoors.

Physical (mineral) sunscreens containing zinc oxide or titanium dioxide work immediately on application since they sit on the skin surface rather than being absorbed, so timing is less critical with those — but they still benefit from being applied and allowed to settle before going out.

We Recommend: Sun Bum Original SPF 30

Tanning Oils and Accelerators for Outdoor Tanning

If you’re using a tanning oil or outdoor tanning accelerator rather than sunscreen, apply it 15 to 20 minutes before going outside. These products work by moisturising the skin and, in some formulations, containing ingredients like tyrosine that support melanin production — but they need a few minutes to absorb before they’re most effective.

Note that most tanning oils contain little or no SPF — they’re designed to maximise UV absorption rather than block it. If you’re using a tanning oil, be especially mindful of your skin type and total exposure time. For guidance on timing your outdoor sessions, our guide to the best time to tan outside covers UV intensity throughout the day in detail.

How Long Before a Spray Tan Should You Apply Lotion?

Spray tanning has the strictest lotion timing rules of any tanning method — and the answer for the day of your appointment is simple: don’t apply any lotion at all.

Any moisturiser, body oil, or cream applied to the skin before a spray tan session creates a barrier between the DHA solution and the skin surface. This prevents the DHA from reacting evenly with the amino acids in your outermost skin cells, and the result is patchiness, streaking, or areas where the colour is significantly lighter than the rest of the skin.

The right approach is to moisturise consistently every day in the two to three days before your appointment — this is when hydration does its work, creating an even skin surface — and then arrive on the day with completely clean, product-free skin. No lotion, no body oil, no perfume, no makeup.

The one exception is barrier cream applied to specific dry problem areas like knuckles, elbows, heels, and the hairline — a thin layer to these spots before the spray helps prevent them from absorbing too much DHA. This is different from full-body moisturising and involves a very small, targeted application. Our guide to spray tan positions and preparation covers this in detail.

After your first shower post-spray-tan, daily moisturising resumes and is one of the most important things you can do to extend how long the colour lasts. For more on post-tan lotion timing and product choice, see our guide to lotion after a spray tan.

How Long Before a Tanning Bed Should You Apply Lotion?

For indoor tanning, apply your tanning bed lotion 15 to 20 minutes before your session. This gives the product enough time to absorb into the skin so it’s working properly when the UV lamps activate — rather than sitting on the surface and potentially causing uneven coverage or transfer onto the bed equipment.

Do not apply regular body lotion, sunscreen, or anything with mineral oil immediately before a tanning bed session. These can interfere with the way UV interacts with the skin or, in the case of thick oils, create an inconsistent barrier.

Tanning Bed Lotions — Not the Same as Regular Moisturisers

Tanning bed lotions are a distinct product category, and understanding the different types helps you choose the right one for your goal and apply it correctly.

Accelerators and Maximizers — These typically contain ingredients like tyrosine (an amino acid that supports melanin production) and other skin-conditioning ingredients. They’re designed to enhance the skin’s natural tanning response to UV and produce a deeper result in the same session time. Applied 15 to 20 minutes before going in the bed. Our guide to the best tanning accelerators covers the top options in detail.

Bronzers — Contain cosmetic bronzing agents or DHA that add immediate colour on top of the UV tan result. Some are instant bronzers (cosmetic colour only), some are delayed bronzers (DHA-based, developing over hours like a self-tanner), and some combine both. Applied 15 to 20 minutes before the session. After a bronzer session, rinse hands immediately as you would after a spray tan.

Tinglers — Contain ingredients like benzyl nicotinate that increase microcirculation in the skin, creating a warming or tingling sensation. The idea is that increased blood flow to the skin surface enhances the melanin response. These are not suitable for everyone — people with sensitive skin may find them uncomfortable. Applied before the session in the same 15 to 20 minute window.

Tan Extenders and After-Session Lotions — These are applied after tanning, not before. They keep the skin hydrated to slow the fade and sometimes contain low levels of DHA to top up colour between sessions. For a full breakdown of these, see our guide on lotion after a spray tan, which covers the same principles for tanning bed aftercare.

For a full comparison of the best tanning bed lotions across all types, our guide to the best tanning bed lotions covers what to look for and the top products worth considering.

What to Look For in a Pre-Tan Lotion

Whether you’re moisturising before sun exposure or applying a pre-bed lotion, the ingredient profile matters. Here’s what to seek out and what to avoid.

Ingredients That Work Well Before Tanning

Aloe vera — lightweight, absorbs quickly, hydrates without oil content, won’t interfere with UV or DHA
Glycerin — a humectant that draws moisture into the skin; gentle, colourless, and tan-safe
Shea butter — rich emollient that locks in moisture without the UV-blocking properties of heavier oils; better as a pre-sun moisturiser than as an immediately pre-session application
Hyaluronic acid — deeply hydrating, no oil content, works well applied the evening before or 30 minutes before outdoor tanning
Tyrosine — found in tanning bed lotions specifically; an amino acid that supports melanin production

Ingredients to Avoid Before Tanning

Mineral oil — creates a surface barrier that can cause uneven tan absorption; common in cheap body lotions and best avoided entirely for tanning purposes
Alcohol — dries the skin and can strip the outer cell layer, causing uneven tanning and faster fade
Artificial fragrance — often contains alcohol compounds; can react with DHA and affect colour tone
AHAs and BHAs (glycolic acid, lactic acid, salicylic acid) — exfoliating acids accelerate dead cell shedding; using these before tanning undermines the even skin surface you’re trying to achieve
Physical exfoliating beads — same issue as chemical exfoliants; save these for the evening before at the latest, not the day of

We Recommend:
Body Lotion: Everyone Nourishing Hand and Body Lotion
Face Cream: Awake Humans Organic Face Moisturizer

The Night-Before Skin Prep Routine

The evening before a tanning session is the best time for a more thorough skin prep — giving everything overnight to absorb and settle so your skin arrives ready the next day.

Start with a gentle exfoliation — a light body scrub or exfoliating mitt — focusing on rough areas like knees, elbows, ankles, and the backs of hands. This removes the uneven dead skin layer that causes patchy tanning results in those spots. Don’t exfoliate on the morning of the session — the skin needs a few hours to settle after exfoliation before tanning works best on it.

Follow exfoliation with a generous application of a fragrance-free, oil-free moisturiser. This overnight window is when hydration does its best work — by morning, the lotion has fully absorbed and the skin has a smooth, even surface for whatever tanning method you’re using.

On the morning of your session, a light, quick-absorbing moisturiser applied 20 to 30 minutes before sun or bed tanning is all you need. For spray tanning, skip it entirely and go in with nothing on the skin.

Frequently Asked Questions

Can I apply regular lotion before a tanning bed session?

Not immediately before — regular body lotion applied right before a tanning bed session can create an uneven barrier on the skin surface. If you want to moisturise with a regular lotion before indoor tanning, do it the night before or at least several hours before your session. In the 15 to 20 minutes before you get in the bed, use a dedicated tanning bed lotion or accelerator instead.

Can you use tanning bed lotion outside in the sun?

Yes — tanning bed lotions can be used outdoors. However, most contain no SPF, so they won’t protect your skin from UV damage. If you use a tanning bed lotion outside, you’ll still need to apply a separate broad-spectrum sunscreen. The two products serve different purposes — the tanning lotion enhances colour development while sunscreen manages burn and damage risk.

How long before tanning should I apply sunscreen?

Apply sunscreen 15 to 30 minutes before going outside. Chemical sunscreens need this time to absorb and bind to the skin before they provide effective protection. Applying sunscreen immediately before stepping out reduces its effectiveness even if the SPF number is high. Physical (mineral) sunscreens containing zinc oxide or titanium dioxide work immediately on application, so timing is less critical with those.

Should I moisturise before a tanning bed session?

Yes — but with a purpose-built tanning bed lotion rather than a regular body moisturiser. Apply it 15 to 20 minutes before your session. Moisturise with your regular lotion the evening before to prep the skin, but avoid applying regular body lotion immediately before getting in the bed.

Does applying lotion before tanning make the tan darker?

Moisturised skin generally produces a more even, consistent tan — which can appear darker and more uniform compared to a patchy result on dry skin. Tanning bed accelerators specifically contain ingredients like tyrosine that support the melanin production process and can help produce a deeper result in the same session time. Regular moisturisers improve skin condition and evenness, but don’t directly accelerate tanning the way purpose-built products do.

What happens if I apply lotion right before a spray tan by accident?

If you’ve applied lotion on the day of a spray tan appointment, the best approach is to shower and thoroughly rinse the skin before your session if time allows. If you can’t shower, let the salon or technician know — they may be able to do a wipe-down with an appropriate pre-tan prep product. Going ahead with lotion on the skin risks an uneven result, particularly in areas where the lotion hasn’t fully absorbed.

Can I put lotion on right before going in the sun?

A regular moisturiser applied immediately before going out won’t cause problems, but it works better with 20 to 30 minutes to absorb. More importantly, don’t confuse this with sunscreen — sunscreen specifically needs 15 to 30 minutes to properly bind to the skin before it provides full protection. If you apply both, apply sunscreen first and give it the full absorption time before going outside.

What about applying lotion to my face before tanning?

The face needs the same preparation principles as the body — but with additional consideration for SPF. Apply a lightweight, fragrance-free facial moisturiser 20 to 30 minutes before sun exposure, followed by a facial SPF. Many people find a combined SPF facial moisturiser works well for outdoor tanning. For tanning beds, avoid applying any heavy face cream immediately before a session — use a light, dedicated tanning lotion or go in with clean, dry skin on the face.

Conclusion

Timing your lotion correctly before tanning is a small habit that makes a consistent difference to how well your tan develops and how evenly it fades. The core principle across all methods: moisturise and prep the skin thoroughly the evening before, give any product applied on the day proper time to absorb, and never apply regular lotion to the skin immediately before a spray tan session.

Get the timing right for your method — 20 to 30 minutes for sun, 15 to 20 for tanning bed lotion, and nothing day-of for spray — and your skin will consistently be in a better starting position for every session.

For more guidance on building a complete tanning routine, our guide to tanning darker and faster without burning covers the full approach for outdoor tanning, and our tanning beds section has everything on indoor tanning prep and aftercare.

References

UV Radiation and Sunscreen Guidance:
U.S. Food and Drug Administration. “Ultraviolet (UV) Radiation.” FDA.gov. FDA guidance covering UV types, sunscreen recommendations including the advice to apply before sun exposure, and the importance of broad-spectrum SPF 30 or higher for extended outdoor exposure.

DHA in Spray Tanning — Skin Interaction:
Muizzuddin, N., et al. (2017). Clinics in Dermatology. “Dihydroxyacetone: A Review of Its Safety and Efficacy for Topical Use.” Review of how DHA reacts with amino acids in the outermost dead skin layer — the basis for understanding why skin surface condition and pre-tan preparation directly affect spray tan results.

Melanin Production and Tyrosine:
Schallreuter, K. U., et al. (1996). Pigment Cell Research. “Melanogenesis in Cultured Melanocytes Can Be Substantially Influenced by L-tyrosine and L-cysteine.” Research showing that L-tyrosine concentration significantly influences melanin production — providing the scientific basis for why tyrosine is used as an active ingredient in tanning bed accelerator lotions.