I wouldn't have thought it if I hadn't tried it, but this stuff actually works. I started taking it about a day after I started experiencing cold symptoms. My symptoms got only a little worse, much less than they normally do when I get a cold, and then I was feeling better within a couple of days. I really didn't think it would work as well as it did.The active ingredients are vitamin C (60% RDA), Zinc (50% RDA), Echinacea, Eucalyptus, and stevia. Other ingredients are peppermint, licorice, roasted chicory, natural menthol extract, lavender and Chinese star anise. The taste is okay, but I prefer it warm with a bit stevia and vanilla-flavored almond milk. I imagine it would also taste good with honey. Three cups a day, and my symptoms went away. I didn't really think it possible before, but I do now.