Satin is usually made from polyester — a synthetic fiber that traps heat, creates static, and pulls at your hair and skin. Unlike satin, MiraSilk™ is woven from 100% pure mulberry silk. Silk is a natural protein fiber, rich in amino acids, that closely mimics human skin and hair. Its ultra-smooth structure reduces friction, helps preserve collagen, and prevents moisture loss — making it scientifically better for maintaining healthy, youthful-looking skin overnight.