Quercetin-Max is Maxi Health's answer to many of today's health challenges. Today there is a lot of focus on quercetin and for good reason. It helps with the absorption of zinc, Its is a bioflavonoid and is regarded to be a powerful antioxidant in its own right. It is supportive of the immune system and recovery. You will not have to choose between quercetin and other recommended vitamins and minerals that you need to protect you. We have added them in the dosages that get results. The three-capsule serving supplies you with: Quercetin 500 mg Zinc (from TRAACS® Zinc Bisglycinate Chelate) 30 mg Vitamin C (from PureWay-C®) 1000 mg Vitamin D3 (2500 IU) 62.5 mcg Elderberry fruit extract (Sambucus nigra) 125 mg. Size: 90 caps.