The Australian melaleuca alternifolia
is where we get most of our tea tree oil. I'm a huge advocate of tea tree oil for a broad spectrum of things as it is antibacterial and antifungal. Any scratch, scrape, rash, etc. in my house gets it immediately including spider bites.
The company itself is global and after looking at a lot of their products it seems they are on the right track product-wise. Call Dwayne Somerville and talk with him or you can check out their website at www.melaleuca.com
Natural, organic and non-toxic are not the same things. You have to take them with a grain of salt and use your own common sense.