D-Panthenol is widely used in the pharmaceutical, food, and cosmetic industries. In the pharmaceutical industry, it serves as a vitamin B compound, participating in metabolism. In the food industry, it is used as a nutritional supplement and fortifier, promoting the metabolism of proteins, fats, and carbohydrates in the human body, maintaining skin and mucous membranes, enhancing hair luster, and boosting immunity to prevent disease. In the cosmetic industry, its skin care effect is manifested as a deeply penetrating moisturizer, stimulating the growth of epithelial cells, promoting wound healing, and having anti-inflammatory effects. Its hair care effect is shown as a long-lasting moisturizing function, preventing hair from splitting and damage, increasing hair density, and improving hair quality luster. In nail care, it improves the water content of nails and gives them flexibility.