"I don't think I want to turn my house into a Chemistry lab"

Neither did I.
But, I'll do whatever I must.

If I knew of a way to purchase oil from a trustworthy source, I would have shared that of course.
Sadly, I do not.
My Glioma patient's immune system took a major hit from his allopathic medication.

Some insecticides are oil based, (so they can endure rain)
Many commercial growers are clueless about toxic chemicals and their concentration with oil extraction.
We have no dispensaries here and a plethora of hungry tropical insects.
And I've seen things used on cannabis that I wouldn't use on a lawn!
Purity of the oil was essential, so I learned how to do it myself.

I do hope that you find what you need.
I could not.
If that changes, I'll let you know.
And I'll expect you to do the same.

Fair enough?
Aloha
Weezard