Propyl gallate is widely used as an antioxidant in various industries to prevent the oxidation of fats and oils, thereby extending the shelf life of products. In the food industry, it is commonly added to edible oils, baked goods, meat products, and snack foods to maintain freshness and prevent rancidity. It is also utilized in cosmetics and personal care products, such as creams, lotions, and lipsticks, to stabilize formulations and protect them from degradation caused by exposure to air. Additionally, propyl gallate finds application in pharmaceuticals, where it helps preserve the efficacy of drugs by preventing oxidative damage. Its antioxidant properties make it a valuable additive in products prone to spoilage or deterioration due to oxidation.