Our Glam Silk Pillowcases are made with highest quality 22 Momme 6A Long Fibre Mulberry Silk. We have rigorously tested and refined our silk to create the perfect combination of softness, thickness and shine. Our pillowcases have been certified by Oeko Tex Standard 100, this means they have been tested for over 100 harmful substances and follow the most strict quality guidelines. Our pillowcases are naturally hypoallergenic and won’t dry out your skin and hair while you sleep like cotton does. Switching to our Glam case will do wonders for you sleep, skin and hair! Features: - 100% 22 Momme 6A Grade Long Fiber Mulberry Silk - Oeko-Tex® Certified: Safe, Eco-friendly and Non-Toxic - Machine Washable Care: Hand or machine wash on cold delicate using gentle detergent. Hang dry or tumble dry for 10 minutes.