| Hyaluronic Acid | ||
| Batch No.:GW20220511A Grade:Cosmetic grade Manufacturing Date: 2022-05-11 Expiry Date: 2022-05-10 |
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| Items | Specifications | Results |
| Appearance | White or almost white powder or granule | Complied |
| Glucuronic acid | ≥44.5% | 47.0% |
| Sodium Hyaluronate Assay | ≥95% | 97.2% |
| Molecular weight | Measured Value | 8,000-15,000 |
| Protein | <0.1% | 0.03% |
| pH(0.5% aq.sol.25℃) | 5.0-8.5 | 6.8 |
| Intrinsic Viscosity | Measured Value | 0.28dL/g |
| Kinematic viscosity | Measured Value | 0.99mm2/s |
| Absorbance (0.5% aq.sol.25℃) | A280nm ≤0.25 | 0.10 |
| Transparency(0.5% aq.sol.25℃) | T550nm ≥99% | 99.9% |
| Loss on drying | ≤10% | 6.9% |
| Heavy metals | ≤20ppm/kg | <10ppm/kg |
| Bacterial counts | ≤100cfu/g | Complied |
| Mold & Yeast | ≤50cfu/g | Complied |
| Staphylococcus aureus | Negative/g | Negative/g |
| Pseudomonas aeruginosa | Negative/g | Negative/g |
| Conclusion | Up to the Q/FCG4.1.111-2017 Standards | |
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