Sunscreen reduces risk but does not make outdoor time unlimited.
Apply enough product and reapply according to the label, especially after swimming or sweating.
Use shade, clothing, hats, and sunglasses with sunscreen rather than relying on SPF alone.
SPF reminder tool
Sunscreen Reminder
A sunscreen reminder should start with the product label, then adjust for time outside, swimming, sweating, towel drying, and the UV band. FDA consumer guidance commonly points to reapplying at least every two hours, and sooner after water or sweat.
2 hours Default: FDA consumer guidance uses at least every two hours.
Water + sweat Sooner after: Follow the product label after swimming, sweating, or towel drying.
Shade Layer with: SPF is one layer with clothing, hats, sunglasses, and timing.
Good to know before you go out
The practical safety context for this page, in plain language.
When to set a sunscreen reminder
Set the first reminder when you apply sunscreen, then make the next reminder earlier if you swim, sweat heavily, towel dry, or stay out through a higher UV period. The reminder should be visible guidance before the app CTA, not a locked feature.
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Before the session
Start with the label directions for your sunscreen and your planned outdoor window.
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During the session
If you swim, sweat, or towel dry, treat the reminder as due sooner instead of waiting for the full clock.
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Near peak UV
A reminder is not enough by itself. Higher UV should also trigger shade, clothing, and shorter-window advice.
What TanPilot should save in the app
The app value is persistence: saved SPF defaults, session timers, side-change cues, and notifications. The page still explains the two-hour guidance and water/sweat caveat without requiring an install.
UV bands TanPilot uses
These bands anchor the advice language across timing, SPF, and burn-risk pages.
0-2
Low
3-5
Moderate
6-7
High
8-10
Very high
11+
Extreme
- 0-2 Low
- Usually lower risk for the average adult, with extra care still useful around reflection, altitude, or very sun-sensitive skin.
- 3-5 Moderate
- Protection starts to matter. WHO recommends sun protection when the UV Index is 3 or higher.
- 6-7 High
- Plan shorter exposure windows, avoid the daily peak, and use shade, clothing, sunglasses, and broad-spectrum sunscreen.
- 8-10 Very high
- Burn risk can rise quickly, especially near midday. Treat tanning time as a short, monitored exposure.
- 11+ Extreme
- Extra protection is needed. TanPilot should nudge toward shade-first planning rather than longer exposure.
Questions
Short answers for the exact search intent, without hiding the safety caveats.
How often should I reapply sunscreen?
Follow your product label. FDA consumer guidance commonly says at least every two hours and more often if you are swimming or sweating.
Do I need a reminder if my sunscreen is water resistant?
Yes. Water-resistant labels still have time limits and still need reapplication according to the product directions.
Can I tan while using sunscreen?
You may still tan because sunscreen reduces UV exposure rather than blocking every ray in real-world use. It still does not make tanning risk-free.
Related TanPilot pages
Move from the UV number to timing, burn-risk, skin type, and app setup.