Been doing more research on these oils. I see that most people are talking about using USP grade oils and oils from their grocery store. What I've found is that therapeutic oils seems to be more healthy and cleaner.
For example, "To be therapeutic, there must be no traces of pesticides, herbicides or other chemicals. It must be extracted by steam distillation and not by solvents." "True therapeutic grade oils must contain no synthetic ingredients nor can it be diluted. It must be exactly as it was harvested and distilled without any further tampering with the chemistry." [Stewart, 2012]
On the other hand, "USP Grade A is basically a food or fragrance grade. USP means United States Pharmacopea, which is a set of profiles that oils must meet and which can be met by artificially manipulating the oil by adding synthetic components or refining the oil to remove certain components. Hence, a USP grade oil is, by definition, not therapeutic inasmuch as it has been manipulated to meet a consistent standard for fragrance or flavor. This is okay for oils used in foods, cosmetics, shampoos, deodorants, etc., but not okay for therapeutic usage." [Stewart, 2012]
Any thoughts on this? I'm curious if this is why some people are complaining of pip? Lets discuss this fellas!
Stewart David, Ph.D. "Grading Of Essential Oils." Aromatherapy for Christians. N.p., n.d. Web. 2 July 2012. <http://www.aromatherapyforchristians.com>
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