FOR IMMEDIATE RELEASE
Independent Testing Reveals Cotton Creates 51% More Hair-Damaging Friction than Mulberry Park Silks' 22 Momme Fabric.
BRANFORD, CT - November 10, 2025 - Mulberry Park Silks, a Connecticut-based silk bedding and accessory company, today announced new independent laboratory results that scientifically confirm the hair-protection benefits of sleeping on silk. In controlled friction tests performed by a leading textile research institute, Mulberry Park Silks' 22 momme pillowcases produced 34% less friction on human hair than cotton, meaning cotton generates 51% more hair-damaging friction than Mulberry Park's silk surface.
These findings offer rare, third-party, quantitative validation of what beauty experts and dermatologists have long observed: friction plays a major role in overnight hair stress. Most people shift their head 30 to 40 times per night, and each movement produces drag that can weaken strands. Higher-friction fabrics - like cotton - create more resistance, which can translate into breakage, split ends, tangles, and frizz. Silk's naturally smooth surface reduces that resistance, allowing hair fibers to glide instead of snag.
This study represents the first time the hair-protection properties of silk pillowcases have been quantified through controlled laboratory testing using standardized textile industry methods. The testing involved 80 individual friction measurements across diverse hair types to ensure statistical reliability and broad applicability.
"We've always known that silk is a naturally low-friction material, but until now, evidence for those benefits was anecdotal," said Kendra Cosenza, Senior Brand Manager at Mulberry Park Silks. "This independent study provides concrete, measurable proof: our 22 momme mulberry silk creates significantly less mechanical stress on hair overnight. For anyone struggling with breakage, frizz, or damaged hair, this data shows that switching to silk isn't just a luxury; it's a science-backed solution."
The testing was conducted by a leading textile research institute using industry-standard evaluation methods for fabric-to-hair interaction. The facility is known for performance testing and material validation work for major global brands.
Methodology and Results
Researchers used precision laboratory equipment (Texture Analyzer Model TA-416) to measure the friction created when real human hair is pulled across different pillowcase fabrics at controlled speeds. To ensure the results apply to all hair types, the study used diverse hair samples representing multiple ethnicities including straight, wavy, curly, and coily textures.
Test Results
| Fabric Type | Friction Measurement (g·mm) | Difference vs. Other Fabric |
|---|---|---|
| Cotton Pillowcase | 5,344 | Cotton pillowcase generates 51% more friction than Mulberry Park Silks 22 momme pillowcase. |
| Mulberry Park Silks 22 Momme Pillowcase | 3,529 | Mulberry Park Silks 22 momme pillowcase has 34% lower friction than a cotton pillowcase (difference of 1,815 g·mm). |
Mulberry Park Silks' 22 momme mulberry silk pillowcases are available in standard, queen, and king sizes in 15 colors.
About Mulberry Park Silks
Mulberry Park Silks is a US-based silk pillowcase, bedding, and accessories company headquartered in Branford, CT. The brand is dedicated to craftsmanship and quality, producing all products from the highest quality silk available: 100% pure Grade 6A mulberry silk. Mulberry Park Silks offers a full range of silk essentials designed to elevate sleep, beauty, and wellness. The company's commitment to quality has made it a trusted choice for consumers seeking science-backed sleep and beauty solutions.
About the Independent Testing Facility
A leading textile research institute specializing in material-performance testing and fiber-to-fabric interaction analysis conducted the study. The laboratory uses standardized testing protocols and advanced instrumentation to provide reliable, third-party data for brands and manufacturers worldwide.
Media Contact:
Zoe Doyle
Mulberry Park Silks
Phone (800) 860-1924 x108
zoe@mulberryparksilks.com
