[sammyg2]

= long winded way of saying synthetic.

Most oils are refined through distillation.
Anyone who's take organic chemisty has all too painfully learned that there's always a mixture of different molecules. You can maximize some and minimize others, but the undesired molecular chains are still there. they are just in the minority.

That is, unless, you "grow" your own. i.e. synthetic.
Even then you'll end up with a small portion of odd-ball or errant molecules but they'd be very rare. IOW the oil will be as near a pure cut as you can get.