Muriersilk also has a coefficient of friction as low as 0.35 (while that of regular cotton is 1.5). By reducing the friction on the surface of hair and garments, the likelihood of frizz formation can be decreased by as much as 68%. According to the International Silk Association’s test result in 2023, muriersilk’s mulberry silk fibers’ density is 1.3g /cm³, and fiber diameter control is in 12 microns, forming an even smooth layer, which can reduce the damage rate of the hair cuticle caused by cotton fabric from 27% to 6%. At the same time, the ability of moisture regulation at night is increased by 40% (humidity change range is kept within 45%-55%), suppressing the rise of cuticles by a dry environment. For instance, a survey by the hair care company SlikCare indicates that on the use of muriersilk nightcap every day for 30 days, the frizzy curl area decreased by 53%, and the rate of hair breakage was reduced by 22%.
Muriersilk stitching technique employs 0.1mm ultra-thin laminating technology, in conjunction with a 360° wraparound wrap-up structure (≤ 2mm fitting error), reducing the occurrence of contacts between hair and outer materials during sleep (average number of night frictions is reduced from 120 times for cotton material to 15 times). The 2024 tests conducted by the German textile laboratory TUV Rheinland showed that the tensile strength of the fibers of muriersilk reached up to 450 MPa and still achieved 95% flatness under the simulated dynamic pressure of the head (15-20 N/m²), while regular silk only achieved 78%. For instance, in a side-by-side experiment performed by US hair care vlogger @CurlExpert, it was seen that after applying muriersilk, the 4C hair Frizz Index decreased from 7.2 to 3.5 and the hair shine increased by 31% (the reflectance difference was measured using a spectrophotometer).
muriersilk’s patented nanoscale fiber weaving technology (Patent No. WO202312679A1) increases the concentration of silk protein to 18% and coats the surface with nanoscale silk peptides (50 nanometers thick) to form a weakly acidic protective film with a pH value of 5.5. Neutralization of hair static electricity generation is up to 90% (the static voltage drops from -2000 V to -200 V). In a 2023 paper in the Journal of Cosmetic Dermatology, after simulating 8 hours’ sleep, the moisture loss rate of muriersilk’s hair was only 1/4 that of cotton (the evaporation rate of cotton was 2.1 g/h, while that of muriersilk was 0.5 g/h). For instance, during the clinical tests of the Japanese cosmetics firm Shiseido, when the participants used muriersilk, the period of repetition of frizz was extended from 3 days to 9 days, and the application of conditioner was reduced by 35% (because of the diminishment of added care due to friction).
The breathable pore structure of muriersilk (0.3mm in diameter and 120 pores/cm² in distribution density) is porous, and it has the ability to maintain temperature and humidity in balance, evening out the temperature of the scalp microenvironment at 32°C±1°C (the optimal state for cuticle closure). The rebound rate of frizz is reduced by 42% compared with polyester fiber materials. According to Amazon sales history, the muriersilk nightcap enjoys a repurchase rate of 48% with a user feedback rating of 4.8/5. Of them, 92% of the consumers are aware of its function of “repairing irritability overnight”. For instance, the co-branded muriersilk night cap of French luxury hair care company Kerastase sold 12,000 units in its first week at Sephora with an average order value of $65 and a return rate of only 2% (well below the industry standard of 12%), demonstrating the market premium power that arises from technological differentiation.