Hyaluronate sodium powder

Buyers must prioritize Molecular Weight (MW), as it determines the application: High MW (>1.8 MDa) for film-forming and lubrication, Medium MW for general hydration, and Oligo/Low MW (<100 kDa) for deep skin penetration. Additionally, ensure Purity (Glucuronic Acid content) is ≥45% and Assay (Sodium Hyaluronate content) is 95.0%–105.0% on a dried basis. Check for transmittance (≥99.0%) to ensure clarity in liquid formulations.

For cosmetic grades, look for COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and ISO 22716 (GMP for Cosmetics). If sourcing for food/supplement use, ISO 22000 or HACCP is required. For pharmaceutical applications, the supplier must comply with EP (European Pharmacopoeia) or USP (United States Pharmacopeia) standards and hold a CEP or DMF (Drug Master File).

Request a pre-shipment sample and conduct third-party testing for heavy metals (Pb <0.5mg/kg) and microbiological limits (Total Plate Count <100 CFU/g). Verify the pH value (typically 6.0–7.5 in 0.1% solution) and protein content (<0.1%) to ensure the product won't cause allergic reactions or instability in your final formulation.

Hyaluronate Sodium is highly hygroscopic. It must be packed in double-layer PE bags inside a fiber drum or aluminum foil bag. The storage environment must be cool (2-10°C for long-term stability), dry, and light-protected. Ensure the supplier uses vacuum sealing to prevent moisture absorption during cross-border transit.

The primary risk is specification mismatch, where the molecular weight delivered does not match the order, affecting the viscosity of your product. Another risk is customs seizure due to lack of proper chemical identification. Always use HS Code 3913900000 and ensure the supplier provides a Non-Dangerous Goods Declaration to facilitate smooth customs clearance.

Prices for Hyaluronate Sodium fluctuate based on fermentation raw material costs. Negotiate based on volume tiers; for example, 10kg, 50kg, and 100kg+ usually have distinct price breaks. Ask for tiered pricing based on Molecular Weight, as ultra-low molecular weight (Oligo) is typically more expensive due to the enzymatic degradation process required.

Utilize Secured Trading Services provided by Made-in-China.com to ensure payment is only released upon proof of shipping. For first-time orders exceeding $5,000, insist on a third-party factory audit or a SGS/Intertek loading inspection to verify that the batch number on the COA matches the physical goods being shipped.

For small samples, Air Express (FedEx/DHL) is standard, but ensure they handle 'sensitive powders.' For bulk orders, Air Freight is preferred over Sea Freight to minimize the time the product spends in high-humidity port environments. Ensure the outer cartons are marked with 'Keep Dry' and 'Temperature Sensitive' labels.