Living cells produce an array of highly active oxygen-derived free radicals in their daily functions, which can damage tissue if not addressed swiftly. To prevent damage from occurring within the body, our natural defense mechanisms are constantly working to synthesize antioxidants in order to counterbalance these reactive molecules. When the generation of these free radicals becomes too high, and for any reason, there aren't enough antioxidants to counter them, we enter into a state known as 'oxidative stress.' Research suggests that Quercetin may function to support healthy antioxidant levels throughout the body, including the respiratory system, and as a result, supports immune health and resilience when exposed to environmental stressors.*