Silk pillowcases are naturally hypoallergenic, so ideal for allergy sufferers. Made from the finest 100% 22mm mulberry silk, our pillowcase is soft, smooth, and gentle on your skin and hair. Due to high protein levels, silk is valued for benefits to skin and hair. As it doesn't absorb moisture, it helps keep hair glossy and skin soft, which helps prevent wrinkles! This includes 1 pillowcase per package.