Linden flowers contain a number of natural compounds, or phytochemicals, that are biologically active and responsible for some it properties. Several of its components are antioxidant chemicals called flavonoids, including one called quercetin. Antioxidants help rid your body of free radicals, unstable chemicals that form in your skin when you’re in sunlight or in your organs when you’re exposed to environmental toxins. Over time, free radicals can damage cellular membranes and DNA, raising your risk of heart disease, cancer and other chronic problems. Quercetin and other linden components called kaempferol and p-coumaric acid are also diaphoretics, chemicals that cause you to sweat, while some volatile oils in the flowers may have sedative, calming properties.