This Immune Support tincture has elderberry, echinacea, oregano, rosemary, astragalus root and Rosehips. The elderberry and echinacea are strong immune stimulates and the Astragalus root is a low key immune supporter, the oregano is in this formula because of its strong natural antibiotic properties. The rosemary is an anti spasmodic and anti inflammatory agent that will help with cough. The Rosehips are high in vitamin C and have shown the be helpful against colds.