Elderberry is extremely high in vitamin C, flavonoids & virus-fighting proteins that work together to give your immune system an extra shield against the cold & flu. Taking 1 tsp. to 1 tbsp. of the extract 2X a day can do wonders for your immunity. Its antioxidant activity lowers cholesterol, improve vision, boosts immunity, improves heart health & heals bacterial & viral infections & tonsillitis. Its anthocyanins protect the inner layer of blood vessels from oxidative stress.