Product Details This is a Beyond Beauty product which means it has been sourced, tried and tested and finally declared one of the most new and innovative heroes out there. 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 isnt 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. ; *On average compared to cotton pillowcases with a 220-360 thread count. How To Use Use up to 8 hours daily for maximum results. Full Ingredients Made from 100% highest grade (6A) long fiber mulberry silk with a thickness of 22 momme, pure silk filler and internal liner (exclusive of elastic)