Enjoy our Non-GMO Vitamin C plus Quercetin capsules. The 1,000mg of Vitamin C delivers antioxidants to help support the immune system. Quercetin works synergistically with Vitamin C, while the unique blend of Citrus Bioflavonoids, Rose Hips 4:1 Extract, Rutin, and Elderberry Fruit Extract enhances the absorption of Vitamin C.*