Rosmarinic acid is widely used in the food industry as a natural preservative due to its strong antioxidant properties. It helps extend the shelf life of products by preventing oxidation and spoilage. In the cosmetic industry, it is incorporated into skincare formulations for its anti-aging and anti-inflammatory effects, helping to reduce redness and improve skin texture. Additionally, it is utilized in dietary supplements for its potential health benefits, including supporting immune function and reducing oxidative stress. Research also explores its pharmaceutical applications for reducing symptoms of conditions such as arthritis and allergies, owing to its potent anti-inflammatory properties. In agriculture, rosmarinic acid is applied as a biopesticide to protect crops from pathogens and pests, promoting sustainable farming practices. Its versatility makes it valuable across multiple industries.