Gnc vitamin c time-released - 1000 mg: immune support gnc vitamin c time-released is a protective antioxidant that provides immune. This dietary supplement includes citrus bioflavonoids. 90 vegetarian caplets, 90 servings gluten free & kosher no sugar, starch, preservatives, wheat, corn, soy, or dairy no artificial colors or flavors sodium free. Gnc vitamin c time-released 1000mg - 90 vegetarian caplets (90 servings)