Protection herbal is the best immune defense against colds & flu; environmental, sinus and allergic reactions.It builds immune health with adaptogenic herbs. Us it for chronic sinus and headache symptoms, and throughout allergy seasons as needed. Over time the immune response will strengthen as the symptoms either reduce or do not return. Herbal tonics are highly concentrated medicinal herbs cooked and extracted to provide the highest potency for optimal health. These tonics are special brews that are used over long periods of time to promote radiant health. Tonics provide nutrients that enhance the natural process of organic function. The tonics may be diluted in hot water: fifteen drops of tonic in four ounces of hot water and sip daily.