Peeling means your tan was built on burned skin — and once it starts, you can't stop it entirely. Here's why it happens, what actually slows it down, and how to build a tan that doesn't flake off.

Your foundation says SPF 30 — so do you still need sunscreen? Almost certainly yes. Here's the application-amount math that explains why makeup SPF underdelivers, and how to layer both properly.

Fall is the best window of the year to undo summer's damage — lower UV means your skin can tolerate the actives that actually fade dark spots. Here's a step-by-step recovery routine.

A parked car can reach 120°F or higher — well past the temperature at which SPF actives start to break down. Here's what heat does to sunscreen, how to tell if yours has gone bad, and how to store it properly.

UVB drops in autumn. UVA barely moves. Here's why dermatologists treat September through March as sunscreen season too — and how to adjust your SPF routine as the weather turns.