Hesperidine is a flavonoid found in citrus fruits, particularly in the peel and inner white layer (pith). It's known for its potential health benefits, including antioxidant and anti-inflammatory properties. Hesperidine supplements typically contain high concentrations of this compound, often around 90%, and are sometimes used to support cardiovascular health, reduce inflammation, and promote overall well-being. However, it's always a good idea to consult with a healthcare professional before starting any new supplement regimen to ensure it's safe and appropriate for your individual health needs.