DETAILS - A multi award-winning anti aging, anti sleep crease, anti bed head slipsilk pillowcase. - Slip is the #1 preferred brand of silk pillowcases by dermatologists for their patients, themselves and their families** - The beauty secret of celebrity hairstylists, dermatologists and beauty experts. How to Use it Use up to 8 hours daily for maximum results. Key Ingredients Made from 100% highest grade (6A) long fiber mulberry silk with a thickness of 22 momme ANTI AGING: We spend a third of our lives in bed. In laboratory testing, slipsilk pillowcases were shown to absorb significantly less face cream than cotton pillowcases*, so they can help keep your skin’s moisture and valuable face and hair products where they belong, on your face and hair. Slipsilk was also shown to create 43% less friction on average*, which can reduce stretching and tugging on delicate facial skin. ANTI SLEEP CREASE: Slipsilk has been shown to reduce friction by 43% on average*, allowing skin to glide along the pillow, which can reduce pressure on creased skin. ANTI BED HEAD: Ordinary pillowcases can cause hair tangling during the night. In laboratory testing, slipsilk has been shown to reduce friction by 43% on average*. Size 20'' x 30''