The beauty secret of celebrity hairstylists, dermatologists and beauty experts. What could be better than sleeping on a slipsilk™ pillowcase? Wearing a luxurious slipsilk™ sleep mask at the same time (so your beauty sleep isn’t interrupted). Slip® pure silk products are made using slipsilk™, developed and refined for over ten years to provide the ultimate combination of shine, thickness, softness and durability. In laboratory testing, slipsilk™ pillowcases were shown to absorb significantly less face cream than cotton pillowcases*, so they can help keep your skin’s moisture and valuable face and hair products where they belong, on your face and hair. Slipsilk™ was also shown to create 43% less friction on average*, which can reduce stretching and tugging on delicate facial skin. *On average compared to cotton pillowcases with a 220-360 thread count. 3.3"" x 8.1"" / 8.5cm x 20.5cm.