Olive Leaf, Echinacea, Astragalus, and Propolis: What the Research Says About the Ingredients in CHF #49 Olive Leaf Plus
CHF #49 Olive Leaf Plus combines olive leaf, propolis, echinacea, astragalus, garlic, and grapefruit seed extract with vitamins A and C plus zinc. Here is what NCCIH and NIH ODS report about these immune-support ingredients.