How does retinol cream work to undo sun damage?

Retinol cream is a vitamin A derivative that fights damage, and helps your skin look smoother, more even-toned, and younger. Watch dermatologist Doris Day, MD, explain the benefits of retinol, the different types, and the best time of day to use it.

Even better than treating psoriasis is preventing a flare-up in the first place. Here’s how.

Here’s how to use everyday cleaners safely and correctly to ward off germs.

Get the dirt on what causes allergies and asthma.

While some bites and stings are harmless, others could send you to the emergency room.

Don't waste your money! Check out our dermatologist-approved shopping list of proven skin care products before you buy.