Hyaluronic Acid – Natural Moisturizing Polysaccharide

Hyaluronic Acid (Hyaluronic Acid) CAS 9004-61-9: Overview

Hyaluronic acid (Hyaluronic Acid) CAS 9004-61-9 is a repeating polymer of glucuronic acid and N-acetylglucosamine. A colorless hygroscopic substance that forms highly viscous solutions, it actively participates in tissue hydration, promotes regeneration, and is widely used in pharmacology, cosmetology, and bioengineering.

1. Biochemical Basis

Hyaluronic acid consists of repeating disaccharide units (D-glucuronic acid and N-acetylglucosamine) linked by β-glycosidic bonds. Its long chains are capable of forming three-dimensional hydrogels.

2. Properties and Structure

Hydration: Can retain water in a volume many times exceeding the mass of the polymer itself.

Viscoelasticity: The resulting gel is ideally suited for lubricating articular surfaces.

Stability: Sufficiently stable at neutral pH; under harsh conditions, it degrades.

3. Main Areas of Use

Aesthetic medicine: Fillers for wrinkle correction and facial volume restoration.

Ophthalmology: Corneal coatings, surgical gels.

Biosensors: Nanocomposites for detecting enzymes or drugs.

4. Safety and Storage

Biocompatibility: High, therefore often used in injectable forms.

Storage: It is important to ensure dryness, as hygroscopic properties quickly draw moisture from the environment.

Stability: During sterilization using mild methods (e.g., filtration), the structure is preserved.

5. Conclusion

Hyaluronic acid is a valuable natural polysaccharide that maintains leadership in solving problems of hydration, protection, and tissue regeneration. Progress in biotechnology expands its prospects, including new drug delivery schemes, three-dimensional constructs for tissue engineering, and highly effective cosmetic products.