Oleuropein is widely used in cosmetics and skincare products due to its strong antioxidant properties. It helps protect the skin from oxidative stress and UV damage, reducing signs of aging such as wrinkles and fine lines. In the pharmaceutical industry, it is studied for its potential cardiovascular benefits, including supporting healthy blood pressure and improving blood vessel function. It also shows anti-inflammatory and antimicrobial activity, making it useful in formulations aimed at supporting immune health or managing infections. In the food industry, oleuropein acts as a natural preservative, extending shelf life by preventing lipid oxidation and microbial growth in oils and processed foods. Its presence in olive leaf extracts is leveraged in dietary supplements for overall wellness and metabolic support.