Eye Drop Grade Hyaluronic Acid: A Natural Protector For Eye Moisturizing
Hyaluronic acid (HA) is a polysaccharide naturally present in human connective tissue, skin and eyeballs, with excellent moisturizing and lubricating properties. When this ingredient is extracted and purified in a high-purity, low-irritation form, it can be used in eye care products, called eye drop-grade hyaluronic acid, mostly in the form of "sodium hyaluronate".
Compared with general-grade hyaluronic acid, eye drop-grade products must meet more stringent quality standards - not only does it require a hyaluronic acid content of more than 95%, but it also requires extremely low endotoxin and protein residues to ensure safety and comfort when in contact with sensitive eye tissues.
Specifications
| Hyaluronic acid (Eye-drops Grade) |
| Test Items |
Specifications |
| Appearance |
White powder |
| pH |
6.0~7.5 |
| HA Assay (on dry basis) |
95.0%~105.0% |
| Molecular weight |
≥ 1.50×106Da |
| Intrinsic viscosity |
≥ 23.5dL/g |
| Nitrogen |
3.0~4.0% |
| Nucleic acids |
A260nm≤ 0.5 |
| Appearance of solution |
A600nm≤ 0.01 |
| Purity test: |
|
| - Chloride |
≤ 0.5% |
| - Heavy metals |
≤ 20ppm |
| - Iron |
≤ 80ppm |
| -Arsenic |
≤ 2ppm |
| - Protein |
≤ 0.1% |
| - Lead |
≤ 3ppm |
| Loss on drying |
≤ 10.0% |
| Residue on ignition |
15.0~20.0% |
| Microbiological purity: |
|
| - Total bacterial count |
< 100CFU/g |
| - Yeasts & mold |
< 100CFU/g |
| - Bacterial endotoxins |
≤ 0.5IU/mg |
Core Advantages:
1. Strong moisturizing:
Hyaluronic acid molecules have extremely strong moisture absorption capacity, which can absorb and lock hundreds of times its own volume of water, forming a long-lasting moist protective film on the surface of the eyeball, effectively relieving dry eyes, astringent pain and other discomforts.
2. Lubrication and protection:
Its unique polymer structure provides natural lubrication between the cornea and the eyelid, reduces the irritation caused by blinking friction, and improves the comfort when wearing contact lenses.
3. Strong biocompatibility:
Eye drop grade hyaluronic acid is highly similar to the composition of the body's own tears, is not easy to cause allergies or rejection reactions, and is gentle and safe to use.
4. Assist in repairing the ocular surface:
Low molecular weight hyaluronic acid can also penetrate into the surface of the cornea, promote cell metabolism and tissue repair, and has a positive effect on postoperative care or minor eye injuries.
Documentary Support:
1. Certificate of Analysis , Specification Sheet, MSDS(Material Safety Data Sheet), TDS (Technical Data Sheet),Stability data.
2. Relative certificate, such as halal, kosher, etc.
3. Some statements as you need.
Packing and Shipping:
1. Packing: inner:100g/foil bag or 1kg/foil bag; outer:20kg/carton or 25kg/carton
2. Shipping: you can choose to deliver goods by air, courier and sea.
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