N-acetyl d-glucosamine

N-acetyl D-glucosamine (NAG) is typically available in Food Grade, Cosmetic Grade, and Pharmaceutical Grade. Buyers should prioritize a purity level of ≥98% or ≥99% as confirmed by HPLC testing. Key specifications include white crystalline powder appearance, a melting point between 200°C-205°C, and strict limits on heavy metals (Pb <3ppm, As <1ppm). For cosmetic applications, ensure the product has excellent water solubility and a stable pH range (4.0–7.0) to ensure compatibility with skin care formulations.

Depending on the end-use, suppliers must provide specific certifications. For dietary supplements, look for GMP (Good Manufacturing Practice) and ISO 22000 certifications. If exporting to the US, FDA registration is essential. For the European market, compliance with REACH regulations is required. Additionally, because NAG is often derived from chitin (shellfish), buyers should request Allergen Statements or seek Vegan/Fermentation-derived alternatives if targeting the plant-based market. Halal and Kosher certifications are also highly recommended for global distribution.

NAG is a versatile precursor to hyaluronic acid. In the Cosmetic Industry, it is used for skin brightening, hydration, and anti-aging products due to its ability to inhibit melanin production. In the Nutraceutical Industry, it is preferred over standard glucosamine for joint health and gastrointestinal support because it is more stable and less acidic. In Biomedical research, it serves as a key component in tissue engineering and wound healing applications.

Always request a Pre-Shipment Inspection (PSI) and a Certificate of Analysis (COA) for every specific batch. To secure the transaction, use Secure Payment services on Made-in-China.com to ensure funds are only released upon confirmation of delivery. For first-time orders, it is critical to order a small sample (100g-500g) for independent lab testing before committing to a bulk purchase.

Focus on Tiered Pricing; for NAG, the price difference between 25kg (standard drum) and 1,000kg (ton) can be 15-25%. Negotiate for long-term supply agreements to lock in prices against raw material (chitin) fluctuations. Ask the supplier if they can provide customized mesh sizes (e.g., 80 mesh vs. 100 mesh) at no extra cost to suit your specific manufacturing equipment.

NAG is sensitive to moisture and heat. Ensure the shipping terms specify cool, dry, and dark storage conditions. The packaging should consist of double-layer PE bags inside a fiber drum with a tamper-evident seal. For shipping to regions with high humidity, request desiccant packs inside the drums. Verify the HS Code (typically 293299) with your customs broker to ensure correct duty application and avoid clearance delays.