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 closureMade 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 luminosityHypoallergenic. Dermstore has partnered with Flex to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA). This means you can now use your HSA or FSA debit card to buy Slip products with pre-tax dollars, resulting in net savings of 30-40%, depending on your tax bracket. Eligible for HSA/FSA with a letter of medical necessity at checkout. From dermatologist-recommended treatments to solutions for chronic skin conditions like acne, eczema, and rosacea, these products are both effective and eligible. | Slip Silk Pillowcase - Queen - Black | Dermstore