70% of hair damage at night is caused by the friction of pillowcases. The friction coefficient of traditional cotton fabric is as high as 0.7-0.9, while the friction coefficient of Muriersilk patented mulberry silk material is only 0.35-0.45, reducing the wear of mechanical stress on the cuticles by more than 40%. Experimental data show that after continuous use for 28 days, the hair split rate decreased from an average of 15.6% to 6.2%, and the breaking strength increased by 23%. A typical case comes from the consumer tracking of Bluemercury, a high-end beauty salon in New York: Among 50 customers who have been using Muriersilk for a long time, 91% observed an improvement in hair luster within three months, a reduction in the frequency of frizz problems from 1.5 times a day to 0.2 times, and a 67% decrease in the probability of redness and swelling caused by friction among people with sensitive scalps.
Materials science has confirmed that its core advantage stems from the silk structure density of 19-21 μ m (within the standard product thickness range), containing 98% high-purity mulberry silk protein per square meter, which can continuously release 18 kinds of amino acids during sleep to form a 0.003-millimeter moisturizing film. The temperature and humidity control parameters performed outstandingly. Under the test environment of 25℃/ relative humidity of 50%, the surface of the pillowcase maintained a micro-environment humidity of 55%-60%, preventing the hair moisture loss rate from exceeding the critical value of 10% for natural hair (usually, the fluctuation deviation of the pillowcase’s environmental humidity is ±15%). In the 2023 clinical study conducted by the University of Zurich, the median moisture content in the hair of 43 participants after use reached 13.2%, which was 3.7 percentage points higher than that of the ordinary pillowcase group.
Cost-benefit analysis shows significant long-term returns. Calculated based on 8 hours of sleep per day, within the 18-month service life cycle of Muriersilk (with a recommended washing frequency of ≤2 times per week), the cost per use is only 0.13 RMB. Compared with traditional silk pillowcases, the tear resistance strength is increased by 50%, and the product life cycle is extended by 30%. According to the report of the Consumers’ Association of London, after 50 machine washes (standard mode), the tensile strength of the material only decreased by 9.3% in the wash resistance test, which is far lower than the industry average deterioration rate of 35%. Laboratory data from the South Korean beauty group Amorepacific further indicates that when used in combination with hair care products, the efficiency of nutrient absorption can be increased by 22%, saving approximately 600 yuan in the annual hair care budget.
The optimization of sleep quality generates a synergistic effect. The body temperature regulation function of muriersilk maintains the surface temperature at 31.5℃±0.5℃ (the optimal sleep temperature range for the human body), reducing the probability of hot awakening from 23% to 7%. Monitoring data from SleepScore Labs, a sleep research institution, shows that users’ average deep sleep duration extends by 18 minutes, the frequency of turning over decreases by 3.2 times per night, and the scalp blood circulation rate increases by 15%. In terms of allergen control, its mite breeding rate is less than 0.2 per square centimeter, which is 92% lower than that of ordinary fabrics. It significantly alleviates the morning hair loss of 53% of people with seasonal hair loss (from 78 strands per day to 45 strands). Clinical cases show that the frequency of scalp itching attacks of Elena, an allergy patient in Melbourne, decreased from 4.7 times per week to 0.9 times after using it.