Protein hydrolyzates derived from silk are widely utilized in the cosmetics and skincare industry due to their ability to enhance skin hydration, elasticity, and overall texture. These hydrolyzates are rich in amino acids and peptides, which help to repair and strengthen the skin barrier, making them ideal for anti-aging and moisturizing products. They are also incorporated into hair care formulations to improve hair strength, shine, and manageability by nourishing the hair shaft and reducing breakage. In the medical field, silk protein hydrolyzates are used in wound healing and tissue regeneration applications, as they promote cell growth and collagen synthesis. In the food industry, they serve as ingredients in nutritional supplements and beverages to boost nutritional value and support body recovery. Additionally, they are employed in the production of biodegradable films and coatings for various industrial applications, offering eco-friendly alternatives to synthetic materials. Their biocompatibility and bioactivity make them valuable in personal care, biomedical, and food sectors.