What it is: An anti-bedhead, anti-sleep-crease standard queen-size pillowcase made of the highest-grade mulberry silk for the ultimate beauty sleep and less-visible signs of aging.Hair Type: Straight, Wavy, Curly, and CoilyHair Texture: Fine, Medium, and ThickKey Benefits: - Anti-aging- Anti bedhead- Anti sleep creaseWhat Else You Need to Know: The beauty secret of celebrity hairstylists, dermatologists, and beauty experts, Slip pure silk products are made using slipsilkâ"¢. Specially commissioned and made to exacting standards, slipsilk was developed and refined for over 10 years to provide the ultimate combination of shine, thickness, softness, and durability.Why switch to a slip pure silk pillowcase? Real results, real benefits in just 4 nights! Clinically shown* to visibly improve: - The appearance of fine lines - Skin hydration - Skin texture and smoothness - Skin radiance, luminosity or brightness Over 95% of users agreed sleep creases, sleep lines and sleep wrinkles were fewer and less noticeable.* Dermatologist recommended.** Slipsilk. Laboratory Tested. Hypoallergenic. The beauty secret of celebrity hairstylists, dermatologists and beauty experts. 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 skinâs 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 averageâ , which can reduce stretching and tugging on delicate facial skin. ANTI SLEEP CREASE: Slipsilk has been shown to reduce friction by 43% on averageâ , allowing skin to glide along the pillow, which can reduce pressure on creased skin. ANTI BED HEAD: Ordinary cotton pillowcases can cause hair tangling during the night. In laboratory testing, slipsilk has been shown to reduce friction by 43% on averageâ . *Based on a study (clinical grading and consumer perception) of over 100 women, aged 35-65, who were regular users of cotton or synthetic (non-silk) satin pillowcases. Clinical grading showed statistically significant improvement. Individual results may vary. **Based on a survey of dermatologists in the United States conducted in April 2023. â Compared to widely available cotton pillowcases with a 220-360 thread count.