Hyaluronic Acid（Cosmetic Grade)
|
Item
|
Standard
|
|
Appearance
|
White powder
|
|
Glucuronic Acid
|
≥ 44%
|
|
Sodium Hyaluronate
|
≥ 91%
|
|
Clarity（0.5% solution）
|
≥ 99%
|
|
pH
|
5.0-8.5
|
|
Molecular Weight
|
1.0-1.5 Million Da.
|
|
Protein
|
≤0.1%
|
|
Loss on drying
|
≤10%
|
|
Residue on Ignition
|
≤20.00 %
|
|
Heavy metal
|
≤10ppm
|
|
Arsenic
|
≤2ppm
|
|
Bacteria Count
|
≤100CFU/G
|
|
Molds & Yeast
|
≤100CFU/g
|
|
Staphylococcus aureus
|
Negative
|
|
Pseudomonas aeruginosa
|
Negative
|
|
Hemolysis
|
Negative
|
|
Viable Hemolytical Streptococci
|
Negative
|
|
|
|
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