Efficacy and Applications

Hydroxypropyl Chitosan features moisturizing, antibacterial, antioxidant and biocompatible properties, and is widely used in cosmetics:

1. Moisturizing：it contains hydrophilic groups. It can form a moisturizing film in emulsions to effectively lock in moisture. Often used as a humectant, it can significantly relieve dry skin and keep the skin soft and smooth at all times.

2. Antibacterial and Preservative：Retaining the natural properties of chitosan, it can inhibit the growth of various bacteria. It acts as a preservative in cosmetics, helping extend product shelf life and reduce skin problems caused by microbial proliferation.

3. Antioxidation：Containing active amino and hydroxyl groups, hydroxypropyl deacetylated chitosan can effectively scavenge free radicals, protect cells from oxidative damage, improve skin condition and prevent skin aging.

4. Thickener and Stabilizer：As a thickener and stabilizer, it increases product viscosity and stability, optimizes the texture and sensory feel of cosmetics, and makes products easier to spread and absorb.

5. Biocompatibility and Safety：it has excellent biocompatibility and safety. It is mild and skin-friendly, suitable for many skin types. It is biodegradable; when used in vivo, it can degrade gradually without triggering allergic reactions, delivering reliable safety.