Be wary of mulit-level marketing essential oil companies that claim their oils are therapeutic grade or that only therapeutic grade essential oils are effective in treatment. There is no such thing. Here is an excellent article on the subject.
Apr
28
1 comment
Yolanda says:
July 16, 2012 at 9:59 am (UTC -7)
Thanks for sharing this valuable information. I just recently learned about this and was always confused. Testing is our best resource to obtain quality.