Retinol, retinal, Retin-A — here's what each one actually does, how they're different, and which one makes sense for your skin in a climate that never lets up.

If your skin keeps reacting to products you've used for years, fragrance sensitivity may be the reason — and it's more common in South Florida than most people realize.

When you put sunscreen on matters just as much as which one you choose — and most people in South Florida are getting the order wrong

That raised red line on your arm isn't an allergy to your detergent. It might be your skin literally writing back.