D-pantethine is widely used in dietary supplements due to its role in supporting metabolic health. It serves as a precursor to coenzyme A, which is essential for energy production and the metabolism of fats, carbohydrates, and proteins. It is commonly included in formulations aimed at maintaining healthy cholesterol levels and supporting cardiovascular function. Additionally, D-pantethine is used in skincare products for its potential to improve skin barrier function and reduce inflammation. Its involvement in cellular repair and antioxidant processes also makes it a component in products targeting liver health and detoxification support.