Dietary Supplement. Certified Gluten-free. Gluten, wheat & dairy free. Suitable for vegans. Free of: Gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, preservatives, and color. Non-GMO. Unique synergistic formula. Immune health support. Since 1947. Solgar Quercetin Complex includes the important bioflavonoid Quercetin in a synergistic formula with Ester-C Plus to provide unique antioxidants as well as immune health support. Quercetin is found in onions and other foods. It possesses antioxidant properties which help to stabilize cell membranes. Ester-C Plus provides a unique, pH neutral (non-acidic), form of vitamin C that is gentle on the stomach. Ester-C Plus offers the additional benefits if incorporating acerola berry, citrus bioflavonoids, rutin and rose hips. This formula also features bromelain, a natural enzyme derived from pineapple. Solgar's KOF-K certification. K-1250. www.solgar.com. For more information, call toll-free 1-877-Solgar 4, www.solgar.com. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)