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Sun-smart guides, zero homework vibes
Fourteen honest answers about tanning, UV and sunscreen — written with the same dermatology model (Fitzpatrick types + MED) that UV Buddy runs live on your phone.
☀️ Tanning
How long does it take to tan?
Real session lengths by skin type and UV level — and when more time stops helping.
Read → UV IndexThe best UV index for tanning
Why UV 3–5 out-tans UV 9, and the best hours of the day for color.
Read → TanningHow to tan without burning
The 75% rule, SPF myths, and the golden rules of a burn-free glow.
Read → HolidayBase tan before a holiday
What a pre-holiday tan can and can't do — and the 2–3 week plan that works.
Read →🧴 Sunscreen
How often to reapply sunscreen
The two-hour rule, the water exceptions, and how to actually remember.
Read → SunscreenWhat SPF should I use?
SPF 30 vs 50, what the numbers mean, and matching the factor to your skin.
Read → SunscreenZinc & reef-safe sunscreen
Mineral vs chemical filters, decoded — and what "reef-safe" really means.
Read →🔎 UV & skin science
The UV index, explained
What 3, 7 and 11 actually measure — and why UV isn't temperature.
Read → Skin typesSkin type & burn time
The Fitzpatrick scale, your MED, and burn minutes at every UV level.
Read → SeasonsWinter & snow UV
Why skiers burn in January: reflection, altitude and hidden winter sun.
Read → WidgetsUV index widgets on iPhone
Home Screen, Lock Screen, Apple Watch complications and the Dynamic Island.
Read →👨👩👧 Family & health
Sun safety for kids & family
Ages, SPF, timers and the beach-day protocol for the whole crew.
Read → RecoverySunburn: what to do now
The first-hour checklist, the 72-hour timeline, and when to call a doctor.
Read → HealthMelanoma prevention
Boring habits, big payoff — plus the ABCDE self-check, calmly explained.
Read →
All of this, running live for your skin
Every table in these guides is computed personally for you in the app — at your location's real UV, for every member of your family.
Download on theApp StoreFree to download · Family profiles · iPhone + Apple Watch