It's made exclusively from the manuka plant, also known as tea tree. It's also certified and activated somehow or other. There are different strengths and different grades of manuka honey. It's a very good topical antibacterial, and will treat wounds like ulcers that don't respond well to antibiotics. I live in NZ where it's produced, and the super high grade certified for export stuff is very expensive here as well, but you can get MUCH cheaper grades, right down to mixed source manuka that people just eat like regular honey. Interestingly, my doctor has little jars of the stuff in his office that he prescribes for skin ailments. It's used a lot for children or the elderly, or people on significant medication already, who also have a bacterial skin infection.