Caffeic acid is widely used in the cosmetic industry for its antioxidant properties, helping to protect the skin from damage caused by free radicals and UV radiation. It is often incorporated into anti-aging creams, serums, and sunscreens to improve skin health and reduce signs of aging. In the food industry, it serves as a natural preservative due to its ability to inhibit the growth of bacteria and fungi, extending the shelf life of various products. Additionally, caffeic acid is utilized in dietary supplements for its potential health benefits, including anti-inflammatory and immune-boosting effects. Its role in plant metabolism also makes it valuable in agricultural research, particularly in studying plant defense mechanisms and stress responses.