You can only ingest 100% pure essential oils. You'll find a warning on oils you buy at health food stores saying not to do that. Young Living is the only brand that is actually 100% pure essential oils. Like Jacinda said, they have their own farms and a seed-to-seal process and guarantee.
You can also use them topically and aromatically. But you can't heat essential oils - it ruins the healing properties of them. You'll still smell them, but they won't be doing you any good.
I started with them because of my headaches and trouble sleeping and I had exhausted all regular remedies. I was eating Advil and Tylenol like candy and taking Benadryl or Tylenol PM every single night. Who knows how much damage all that has caused on my liver and whatever else.
The oils have solved both of those problems plus a ton more, including allergies. My family rarely uses any kind of drugs anymore.
And of course, then there is the help with stuff like anxiety and depression and other emotional issues. I so wish I had known about these when my boys were all younger!
Anyway, if you want to do some research on your own, there is a great website here with tons of testimonials. The company Young Living has been around for 20 years, so these testimonials go back several years.
http://www.oil-testimonials.com/
And if anyone has any questions, just ask! If I don't know the answer, I'll find it.
Oh and I have 2 Pinterest boards with lots of info also if that's more your thing.
http://www.pinterest.com/maryinaz/yl...-healing-info/
http://www.pinterest.com/maryinaz/yl...ils-diy-ideas/