| Product Name | L-Cystine Powder |
| Grade | Food Grade |
| Certification | HACCP/ISO 22000/HALAL/IS0 9001 |
| Specification | 99%Pure |
| Appearance | White Powder |
| Delivery Time | 7 days |
| Nutrient Content | Vegan, Gluten-Free, Non-GMO, Natural |
| Shelf Life | 2 Years |
| Storage | Cool Dry Place |
L-Cystine is a high-purity white crystalline powder with the molecular formula C₆H₁₂N₂O₄S₂ and a molecular weight of 240.30 g/mol. As a naturally occurring sulfur-containing amino acid, L-Cystine is formed by the oxidation of two L-Cysteine molecules, creating a stable disulfide bond. It plays a crucial role in protein structure, antioxidant defense, and cellular detoxification.
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Exceptional Purity and Quality Assurance
L-Cystine Powder is renowned for its high purity, often exceeding 99% as demonstrated in rigorous quality control tests . Manufacturers adhere to strict standards like ISO 22000 certification, ensuring consistency in physical properties (e.g., white crystalline appearance, pH 5.0–6.5) and chemical composition (e.g., heavy metal content ≤0.001%) . This purity makes it ideal for applications requiring precision, such as pharmaceutical formulations and premium cosmetics, where contaminants could compromise efficacy or safety.
Innovative Production Technology
Advanced enzymatic catalysis and fermentation processes have revolutionized L-Cystine production. For instance, patented methods involve selective of L-serine fermentation broth to enhance enzyme activity, achieving reaction yields >98% without increasing raw material usage . This approach minimizes waste, reduces energy consumption, and ensures scalable production while maintaining cost efficiency. Unlike traditional protein hydrolysis from hair (which yields ~5–8%), modern bio-fermentation offers higher purity and sustainability .
Sustainability and Ethical Sourcing
Manufacturers increasingly prioritize eco-friendly practices. For example, sourcing L-Cystine from spirulina and legumes aligns with plant-based trends, reducing reliance on animal-derived materials . The enzymatic production method further minimizes environmental impact compared to harsh chemical processes, appealing to consumers and brands focused on sustainability .
Regulatory Compliance and Global Accessibility
L-Cystine Powder meets international standards (e.g., FDA, EU certifications), facilitating seamless entry into global markets. Suppliers offer flexible packaging (1 kg foil bags to 25 kg drums) and logistics solutions (express/sea/air shipping), ensuring reliable distribution . Products like those sold on Amazon emphasize cGMP compliance, reassuring buyers of quality and safety .
Cost-Effectiveness and Scalability
The optimized enzymatic production processes not only enhance yield but also lower operational costs. This allows competitive pricing without compromising quality, making L-Cystine Powder a cost-effective choice for bulk applications in food, feed, and industrial sectors .
Established in 2006, we are a certified OEM/ODM manufacturer specializing in premium health supplements. Holding NSF-GMP,HACCP, ISO 22000, USDA Organic, EU Organic, Halal, and FDA certifications, our facility integrates advanced technologies for tablet, capsule, powder, gummy, and softgel production. From formulation to packaging, we provide full-cycle solutions with strict quality protocols, including raw material traceability, third-party lab testing, and Halal-compliant dedicated lines. Serving global markets including North America, Europe, and Asia, we prioritize sustainability through eco-friendly processes and transparent labeling. With 19+ years of expertise, we empower brands to deliver scientifically validated, certification-backed nutraceuticals tailored to diverse regulatory and cultural requirements 
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