Anti aging – 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.Anti sleep crease – Slipsilk has been shown to reduce friction, 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,* which can reduce stretching and tugging on hair and delicate facial skin. *Compared to widely-available cotton pillowcases with a 220-360 thread countThe Slipsilk difference – Slip pure silk products are made using Slipsilk. Specially-commissioned and made to our exacting standards, Slipsilk has been developed and refined for over ten years to provide the ultimate combination of shine, thickness, softness, and durability.Care for your Slipsilk – Unlike common silk products, slipsilk is machine washable. It is still silk and needs as much care as you can give, so ALWAYS use ph-neutral liquid detergent and/or fabric softener. Do not use bleach products. The better you care for your slip, the better it will care for you.