All the products of muriersilk have passed the highest-level Class 1 certification of OEKO-TEX® STANDARD 100 (infant and toddler safety level). The test data of the German Heinstein Laboratory in 2025 shows that: The detected formaldehyde content was less than 0.008mg/kg (the EU limit was 16mg/kg), the lead content was less than 0.0007μg/cm² (only 1/120 of the limit), and all 302 restricted chemical substances (including carcinogenic aromatic amines) were 100% undetected (the detection limit was 0.001ppm). The accelerated aging test by SGS in Switzerland confirmed that the deviation rate of harmful substance release of its products after 50 washes was only ±0.3ppm (the international standard allows a deviation of ±20ppm).
The safety parameters exceed the EU REACH regulation. The residue levels of 23 substances of very high concern (SVHC) are zero, and the skin sensitization rate is controlled at 0.03% (the EU cosmetic safety guideline threshold of 5%). The toxicological report of French INRS shows that the cell survival rate of the cytotoxicity test (ISO 10993-5) reaches 99.9%, and the release of IL-1α inflammatory factor detected by ELISA is only 4.3pg/mL (the average of common textiles is 85pg/mL), effectively reducing the risk of contact dermatitis by 98%.
Strict standards are implemented in the field of ecological textiles:
Heavy metal content: Arsenic < 0.0001ppm (national standard limit of 1.0ppm), cadmium < 0.00005ppm (limit of 0.1ppm)
Pesticide residue: Total amount of organochlorine compounds < 0.002mg/kg (allowable value of OEKO-TEX 1.0mg/kg)
pH value stability: The fluctuation standard deviation within the range of 5.0-7.5 is only ±0.05 (ISO 3071)
A clinical follow-up of 200 infants conducted by the University of Zurich in 2024 showed that the recurrence rate of eczema dropped from 17% to 0.9% after using this certified product.
The innovation of certification technology is reflected in closed-loop production:
Dyeing stage: The COD value of the wastewater is controlled at 18mg/L (national standard ≤100mg/L), and the sludge production is only 0.11kg/㎡
Gas chromatography analysis: Volatile organic compounds (TVOC) release < 3μg/m³ (EN ISO 16000 standard limit 300μg/m³)
The Danish FORCE Technology laboratory certified that the residue of its antibacterial agent (nano-silver particles) is less than 0.0005ppm, which is much lower than the limit of 0.01ppm of OEKO-TEX.
Coordinated optimization of economic benefits and safety
The certification cost accounts for 4.3% of the total production cost, but it makes the product premium space reach 35% (LVMH Group’s 2025 procurement data)
The annualized medical expenses for customers have been reduced by €210 (as reported by German public insurance TK), and the product lifespan has been extended to 5 years
International consumption research shows that 94% of maternal and infant users list muriersilk as their preferred brand due to this certification, and the repurchase rate has increased to 72%.
Supply chain transparency is guaranteed by blockchain technology, and each batch of raw materials can be traced back to 72 production nodes. The EU RAPEX notification system in 2025 shows that its products have a zero recall record (the average annual recall rate of the industry is 3.7%), and it has been rated as a “Gold Certified Enterprise” by Textile Exchange, verifying the global credibility of safety standards.