Index

Cosmetic grade

Food grade

Eye drop grade

Appearance

White or almost white powder

White or straw yellow powder

White hygroscopic powder or granule

Sodium Hyaluronate (dry basis)

90%-105%

Glucuronic acid

≥42.0%

≥42.0%

≥45.0%

PH (0.1% Water Solution)

6.0-7.5

6.0-8.0

6.0-7.5

M.N.

(0.8-1.8)*106

(0.8-2.0)*106

(0.8-2.0)*106

Transparency
(0.1% Solution)

≥ 99%

≥ 99%

≥98%

Protein content

≤0.1%

Loss on drying

≤10.0%

≤10.0%

≤8.0%

Heavy metals
(as Pb)

≤20ppm

Arsenic

≤2ppm

Bacteria count

 ≤ 100CFU/g

 ≤ 100CFU/g

≤10CFU/g

Mold and Yeast

≤ 10CFU/g

≤ 10CFU/g

≤10CFU/g