Sinapic acid is widely used for its antioxidant properties in the food and cosmetic industries. It helps prevent oxidative spoilage in food products, extending shelf life without synthetic additives. In cosmetics, it is added to formulations to protect the skin from free radical damage and UV radiation, supporting anti-aging effects. It also shows potential in pharmaceutical applications due to its anti-inflammatory, antimicrobial, and neuroprotective activities. Research explores its role in managing chronic diseases such as diabetes and cancer, where oxidative stress plays a key factor. Additionally, sinapic acid is studied for use in active packaging materials, where it can be incorporated into biodegradable films to enhance food preservation.