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Hyaluronic acid(HA):
| Specifications\Parameters | Cosmetic grade | Medical Grade | Food grade |
| Appearance | White Powder | White Powder | White Powder |
| Glucuronic acid | Min 42% | Min 45% | Min 44% |
| Molecular weight | 0.8 million- 2.0 million | 0.8 million-2.0 million | 0.8million-1.5 million |
| Protein | Max 0.1% | Max 0.05% | Max 0.1% |
| Residue on ignition(sulphated ash) | ?20% | ?20% | ?20% |
| Heavy metals (Pb) | ?20 ppm | ?20 ppm | ?20 ppm |
| Arsenic(As2O3) | ?2 ppm | ?2 ppm | ?2 ppm |
| Endotoxin | --- | Max 1EU/mg | --- |
| Hemolysis | Negative | Negative | Negative |
| Viable hemolytical streptococci | Negative | Negative | Negative |
| Total bacteria count | ?100 cfu/g | ?10 cfu/g | ?10 cfu/g |
| Other indexs of microorganism | In accordance with the national standard | In accordance with the national standard | In accordance with the national standard |
Hyaluronic acid(HA)