Dr. Gross has seen plenty of patients show signs of aging on the side of their face that they sleep on, a phenomenon he talks about in his book, "Your Future Face." He explains that "putting constant pressure on the skin does break down collagen. I also think that when the skin scrunches and bunches up, you get folds in your skin, and when you sleep like that for hours, that is wear and tear, and the collagen fibers will start to break down." The Slip Pure Silk Pillowcase ($89) helps reduce the friction between the fabric and your skin, "so you skin slides instead of bunching up, and you're not going to get those those fine lines prematurely."
Dr. Gross breaks down the science of why this is a must have for beauty sleep; however, he also just loves how it feels on his skin. "I like the feeling, the comfortable coolness it provides. I don't know what it is but it just helps me drift off. I find it soothing," he says.
Pro Tip: Silk pillowcases need to be cared for properly. It's best to gently hand wash or machine wash them on a delicate setting with cool water and a pH neutral detergent and let it air dry.
