Why switch to a slip pure silk pillowcase? Real results, real benefits in just 4 nights! 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.(1) Slip is the #1 preferred brand of silk pillowcases by dermatologists for their patients, themselves and their families. THE SLIPSILK DIFFERENCE: 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. ANTI AGING: 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 tu