Summer

Summer doesn’t undo your progress all at once. It does it quietly.

It isn’t only the afternoon at the shore. It’s the drive to work, the seat by the window, the walk to your car. UVA passes through glass, and melasma reacts to heat, not just light — which is why some women do everything right with sunscreen and still watch their pigment deepen in July.

The good news: holding your ground takes far less than most people think. This guide shows you the five habits that protect your skin through the high-sun months — and which treatments to schedule now versus save for fall.