Product Details This is a Beyond Beauty product which means it has been sourced, tried and tested and finally declared one of the most new and innovative heroes out there. Why switch to a slip pure silk pillowcase? Real results, real benefits in just 4 nights! Slip is the 1 preferred brand of silk pillowcases by dermatologists for their patients, themselves and their families.† ; 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. ; We spend a third of our lives in bed. In laboratory testing, slip pure silk 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. ; 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. ; Ordinary cotton pillowcases can cause hair tangling during the night. In laboratory testing, slipsilk has been shown to reduce friction by 43% on average††. ; Over 95% of cotton and synthetic (non-silk) satin pillowcase users who made the switch to slip agreed that their sleep creases, sleep lines, sleep wrinkles were fewer and less noticeable.** ** Based on a clinical consumer perception study of over 100 women, aged 35-65, who were regular users of cotton or synthetic (non-silk) satin pillowcases and tried a slip pure silk pillowcase for 4 nights. ; † In a survey of dermatologists in the United States conducted between 1-12 November 2021. †† Compared to widely available cotton pillowcases with a 220-360 thread count. How To Use Use up to 8 hours daily for maximum results. Full Ingredients Made from 100% highest grade (6A) long fiber mulberry silk with a thickness of 22 momme, with invisible zipper