What it is:A sleep mask made of the highest grade mulberry silk for the ultimate beauty sleep. What it is formulated to do:This luxurious, pure, one-size-fits-all Silk Sleepmask delivers antiaging benefits as it doesn't tug at delicate parts of the face. It's made with the highest quality silk, so it feels extra thick and softer on the eyes. Made using a trade secret production method developed over 10 years, Slip silk provides the ultimate combination of shine, thickness, softness, and durability. What else you need to know: 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). THE SLIPSILK DIFFERENCE: 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 Cotton is very absorbent. It can hold up to 27 times its own weight in water and it draws moisture away from your skin and hair. When you sleep on silk, delicate facial skin is more hydrated in the morning.