The beauty secret of celebrity hairstylists, dermatologists and beauty experts. 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. The Details: Fits queen/standard size pillows (20" x 30") with zipper closure Made from grade (6A) long fiber mulberry silk, with a thickness of 22 momme and enforce the strictest quality guidelines, including non-toxic dyes. Clinically shown to visibly improve the appearance of fine lines, skin hydration, texture and smoothness, skin radiance, and luminosity Hypoallergenic