This pillowcase was custom designed by our team to bring you the finest quality mulberry silk. We spend so much time and energy protecting our skin with serums and creams to lotions and potions. Why throw that all away by sleeping on a pillowcase that will absorb vital skin nutrients! With Our customized 100% mulberry silk, your skin will maintain the balanced moisture it needs, fight against dryness and acne, and help to keep you cool through the night. This completely natural and hypoallergenic silk pillowcase is our secret weapon and ohhh did we mention… it's machine-washable too!