The Slip pure silk pillowcases provide a unique sleeping experience. Designed to reduce signs of aging and enhance skin hydration, these pillowcases have clinically demonstrated results in just 4 nights, visibly reducing sleep wrinkles and enhancing skin brightness. Recommended by dermatologists, Slip pillowcases are hypoallergenic and act as a beauty aid by reducing friction and hair damage. Each pillowcase is made with slipsilk, a high-quality silk specially developed for maximum comfort and durability.