Now Foods, Quercetin Phytosome, 250 Mg, 90 VegCapsProduct Description Quercetin is a naturally occurring free radical scavenger that supports a balanced immune system response in the face of seasonal immune challenges. Clinical studies have demonstrated that it can also help to promote normal respiratory function and maintain comfortable breathing. Quercetin may also help to enhance exercise performance and recovery and alleviate pain due to overexertion. Product Benefits Supports Healthy Seasonal