In my seven years as a beauty writer, oily skin has been one of the trickiest skin types to nail down. Despite what it might look like on the surface, too much oil can be the result of dehydrated ...

“Skin purging” is a term some people use to describe an increase in acne after starting a new skin care product, such as a retinoid. However, there are no scientific studies on this topic.

It's officially that time of the year: our skin is itchy, scaly, and more closely resembles a lizard than a dewy, glazed donut. You likely have a dozen barrier-repairing lip balms and thick hand ...