Quercetin is widely used in the food and beverage industry as a natural antioxidant to enhance the shelf life of products by preventing oxidation. It is also incorporated into dietary supplements for its potential health benefits, including anti-inflammatory, antiviral, and immune-boosting properties. In skincare, quercetin is added to formulations for its ability to protect the skin from environmental stressors and reduce signs of aging. Additionally, it is studied for its potential role in supporting cardiovascular health and managing blood sugar levels. Its versatility makes it a valuable compound in both consumer products and medical research.