Retinol has more clinical evidence behind it than almost any other topical skincare ingredient. It also has a higher quit rate than almost any other skincare ingredient, because the adjustment…

Niacinamide went from a relatively obscure ingredient to appearing in roughly half of all new skincare launches within the space of a few years. That kind of rapid adoption in…

Every dermatologist says wear SPF every day. Most people have tried, hit a problem — pilling, greasiness, a white cast that makes foundation look terrible — and quietly stopped. The…

Jawline breakouts get treated as a single category online, usually labeled simply as "hormonal acne," with advice that doesn't always match what's actually happening. In reality, breakouts along the jawline…

Two skincare concepts have dominated trending content over the past few years, and they're frequently mentioned in the same breath as if they're interchangeable or naturally compatible. They're not the…

Double cleansing became one of the most repeated pieces of skincare advice on the internet, and like most things that go viral in skincare, the nuance got lost somewhere between…

Most people who wear sunscreen daily are getting less protection than they think. Not because their product is bad, not because they chose the wrong SPF number, but because of…

There's a version of slugging that makes dermatologists nervous and a version that makes them shrug and say "sure, go ahead." Most of the people who tried it and hated…

Let's deal with the obvious thing first. Tallow is rendered beef fat. It comes from cows. And the idea of smearing animal fat on your face sounds, at first pass,…