The bar never changes.
The skin does.

CLEARED GETS ON THE SHELF · DOCTOR DJELI APPROVED EARNS THE SEAL · AND SOME THINGS ARE NEVER LISTED

Nothing on this shelf got here by accident.

Your everyday white cotton tee	UPF 5–7
That same tee, wet at the pool	≈ 3
Dark, tightly woven cotton	UPF 10–25
Linen — the open weave leaks	UPF 5–15
Tight polyester or nylon	UPF 30–50+
A certified sun shirt	UPF 50+ · tested