super low molecular weight cosmetic grade sodium hyaluronate

Hyaluronic Acid(Cosmetic Grade) Test Items Specifications Appearance White powder Taste Flavorless Aroma None pH 6.0~7.5 Glucuronic Acid ≥ 45.0% HA Assay (on dry basis) ≥ 93.0% Molecular weight 3000-50000daltons Transparency (in 0.1%aq.sol.,) ≥ 99.0% Particle Size ≥ 80Mesh Stake Density ≥ 0.2g/cm3 Purity test: - Heavy metals(Pb) ≤ 10ppm - As ≤ 1ppm Loss on drying ≤10.0% Residue on ignition ≤20.0% Microbiological purity: - Total bacterial count < 100CFU/g - Yeasts & mold < 100CFU/g - E. coli Negative - S. aureus Negative - Salmonella Negative