Celebrities use them. Instagrammers love them. Hair stylists recommend them. Silk pillowcases are not new, but over the past couple of years, they seem to have exploded in popularity, embraced by the beauty and wellness industries and credited with delivering smooth, shiny hair, and wrinkle-free, supple skin.
That doesn’t mean you have to rush out to buy one. Although acknowledging that silk pillowcases may provide some benefits for hair and skin, doctors said the products are best seen as a supplement to existing routines or as a self-care indulgence.