Chitin and Chitosans: Characteristics, Eco-Friendly Processes, and Applications in Cosmetic Science

The review discussed the characteristics, eco-friendly extraction processes, and applications of chitin and chitosans in cosmetic science. These marine polysaccharides were noted for their biodegradability, non-toxicity, and biocompatibility, making them suitable for biomedical, pharmaceutical, and cosmetic products. Innovative extraction methods like enzymatic deproteinization and bacterial fermentation were highlighted. Chitosan's versatile applications included enhancing skin hydration, anti-aging, and improving drug delivery to hair follicles, aiding in alopecia treatment. The review emphasized chitosan's potential as a sustainable and multifunctional ingredient in cosmetics, promoting eco-friendly practices in the industry.