1. Medical and Pharmaceutical Sciences

• Wound care products：Chitin-based dressings (e.g., Chitoflex?) are used in hospitals for chronic wounds, leveraging their hemostatic and anti-inflammatory properties.

• Biodegradable implants：Chitin-derived scaffolds are explored for tissue engineering (e.g., bone or cartilage regeneration) in regenerative medicine.

2. Food and Beverage Industry

• Dietary supplements：Chitin/chitosan is marketed as a "fat-binding" supplement in Western countries, though its efficacy is debated in scientific literature.

• Food preservation：Chitosan coatings are applied to fruits and vegetables to extend shelf life by inhibiting microbial growth.

3. Environmental Technology

• Heavy metal remediation：Chitin-based adsorbents are used in water treatment plants worldwide to remove contaminants like lead (Pb2?) and cadmium (Cd2?).

• Bioplastics：Companies like Mitsubishi Chemical have developed chitin-based films for packaging, targeting the eco-friendly plastics market.

4. Agriculture and Aquaculture

• Biostimulants：Chitin oligosaccharides are used as plant biostimulants in organic farming to enhance crop resilience against pests and drought.

• Aquaculture feed：In shrimp and fish farming, chitin supplements reduce the incidence of bacterial infections (e.g., vibriosis).

5. Cosmetics and Personal Care

• Anti-aging formulations：Chitin derivatives are included in high-end creams for their ability to promote collagen synthesis and improve skin elasticity.

• Sustainable cosmetics：Brands like Lush use chitin from crustacean shells in eco-friendly packaging and product formulations.