Fitzpatrick skin type guide for sunscreen timing
The Fitzpatrick scale is the dermatology standard for categorizing how skin responds to UV. It runs from I to VI, with Type I being the fairest and Type VI the deepest pigmented. Knowing your type sharpens every UV-related decision: SPF strength, reapply schedule, and how much sun is safe in the first place.
Want a personalized reapply schedule based on your location and skin? Use the smart sunscreen timer →
The six types in one paragraph each
Type I: very pale, often with red or strawberry-blonde hair and freckles. Always burns, never tans. Highest UV risk. Type II: fair-skinned with blue, green, or hazel eyes. Usually burns, sometimes lightly tans. Type III: medium-toned, may have darker hair and eyes, tans gradually but can still burn. Type IV: olive or light brown skin, rarely burns, tans easily. Type V: medium brown skin, very rarely burns, tans deeply. Type VI: deeply pigmented skin, almost never burns visibly — but melanoma still occurs, often diagnosed later because it's less expected.
Why skin type changes the reapply window
Type I and II skin reaches a burning dose of UV faster — sometimes in 15 to 25 minutes under a strong sun, before any sunscreen would normally need its first reapply. For these types, the smart sunscreen timer adds an extra 15% urgency to the schedule. Types III through VI use the dermatologist standard two-hour baseline because their natural pigmentation extends safe exposure time, but the reapply rule itself stays the same — protection wears off at the same rate regardless of skin tone.
Don't skip sunscreen if you're Type V or VI
A persistent myth: darker skin doesn't need sunscreen. False. Melanin offers roughly the equivalent of SPF 13 protection at the high end — useful, but not enough for prolonged exposure. UVA still causes premature aging across all skin types. And skin cancer in deeply pigmented skin is often diagnosed later and at more advanced stages, making it more dangerous. Wear sunscreen.
Set your type in the timer once
On the smart sunscreen timer, pick your Fitzpatrick type from the dropdown. The calculation adjusts automatically. You only have to set it once per device.
Related guides
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Read moreUV Index Explained
From 0 to 11+, the UV index tells you how fast skin can burn. Here's how to read it and what each level means for sunscreen.
Read moreHow Often to Reapply Sunscreen
Dermatologists recommend reapplying sunscreen every two hours — but UV index, activity, and skin type can shorten that window. Here's the honest rule.
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