Quercetin
Quercetin is a bioflavonoid common in the plant kingdom, especially high in onions, red wine, and green tea. It is one of the most biologically active flavonoids. Quercetin acts as a potent polyphenol antioxidant and immune system modulator.* Many of its immune support attributes are enhanced by its synergistic relationship with vitamin C. Quercetin is highly active in the skin and lining of the digestive tract.* Quercetin has a stabilizing effect on the immune system, helping various types of immune cells maintain their composure under stress.* This helps provide tolerance for irritants such as pollen.* Quercetin is known to modulate the behavior of the gene signal NF-kappaB, the crucial signal determining how a cell naturally manages stress and inflammation.* Quercetin interacts with bones at a fundamental level (NF-kappaB), favorably influencing the behavior of both osteoblasts (bone building cells) and osteoclasts.* Quercetin is one more natural compound that assists optimal bone h