It’s almost 2023, and by now, you’ve undoubtedly tried (or been pressured to try) a chemical exfoliant, whether it be a AHA vs. BHA vs. PHA. The only issue? Decoding WTF they all mean and figuring out ...

Doctors use the 25-hydroxy vitamin D test to monitor your vitamin D levels. Low levels can mean you need to spend more time outdoors or adjust your diet. But it can also occur with certain medical ...

Gentler than their physical counterparts, chemical exfoliants — AHAs, BHAs, and PHAs — are the resurfacing ingredients that will up your skincare game. But before you pick up your next product, it's ...

AHAs and BHAs are types of hydroxy acids. The purpose of both is to exfoliate the skin. Depending on the concentration, a related product may remove dead skin cells from the surface of the skin, or it ...