janoshik
Subscriber
Imo it's not possible from the nature of the logic involved, unless impurities are well defined such as in the case of GH / peptides.
If you have heptanoic acid in oil, or some fatty esters of something, how can you tell it comes from the raw or the oil itself? Because both sources are possible.
Now, if you see degradation products of tren in the oil, it's fairly obvious, but still, I tend to avoid anything that can be harder to interpret - because somebody somewhere will always interpret it wrong.
With test e it could be possible, but with much less sensitivity than with raw powder.
IE 1% impurities would show easily if raw powder was tested straight away, but they might go completely undetected in oil. I lack a good metaphor right now.
