Few ingredients do as much as vitamin A. It clears pores, smooths texture, fades dark spots and builds collagen. Here's how it works, how to start without irritation and the vitamin A products we recommend.

Oily skin needs a balance of clearing and hydrating. Here are the three ingredients we rely on most, how to use each one safely (including on brown skin) and a simple nighttime routine to put them to work.

Whiteheads, blackheads, papules, cysts: not all acne is the same, and treating it the wrong way can make it worse. Here's how to tell what you're dealing with and how our acne program gets skin clear.

Blackheads aren't dirt, and scrubbing harder won't get rid of them. Here's what's really happening inside the pore, why pore strips backfire, and the routine we use to keep pores clear for good.