There's arguably no category of skincare ingredients that can do more than direct acids. They're well-known—and beloved—for their ability to do everything from brighten skin to unclog pores. But, ...

In short, AHAs work by exfoliating, and that process makes skin look instantly more refreshed. Though a scrub can also remove dead cells, chemically exfoliating with alpha hydroxy acid products can go ...

There’s a whole world of vinegar out there. Here are the essential varieties for pickles, pan sauces, and more. As Samin Nosrat explained in her seminal 2017 cookbook Salt, Fat, Acid, Heat, acid is a ...