"In the skin-care world, there are a few buzzy ingredients that tend to get all the credit for hydrating your complexion. Hyaluronic acid is lauded for its ability to hold 1,000 times its weight in water, ceramides are known as the "building blocks" of your complexion, and pros have referred to squalane as the "big gulp" of moisturizers. In other words, there are a lot of options out there to choose from when it comes to dealing with dry skin. But according to Mona Gohara, MD, a board-certified dermatologist based in Connecticut, if you're going to pick just one to stick with all winter, your best bet is to go back to basics and opt for glycerin..."
By Zoe Weiner