Just a little insight from experience.
I ordered primo years ago after having some good experience with my first batch. Well, I ticked the wrong box and ordered acetate instead of enanthate.
I was in the USA and my people were brewing it in Mexico according to my “recipe”.
I typically let things sit in media bottles for a week or more to ensure there’s no crashing.
Of course, this shit was crashing as soon as it cooled.
I was fielding calls and trying to figure out a way to save it. Even then, primo was expensive.
So I directed them to add carrier/solvents to reduce the potency to 75mg/mg. Maybe we could sell it as such?
But still, crashing.
So now it’s a total loss. Time to play around. So we added more of this and more of that. It never held. A very, very expensive fuck up. Everything tossed.
I keep a labeled vial on my desk to remind me every time I ordered after that. Check and recheck what is being ordered.
Now, imagine if my people bottled and labeled this trash and sold it.
Devastating to my business and shitting on my customers.
Those helping me would never again do so.
And as far as testing. I couldn’t afford to send out every batch, but sent out things like primo, halotestin and other expensive compounds to Jano.
But things like oxandrolone and testosterone, I would just melt test. This is an organic chemistry standard and is at least accurate enough to tell you what it isn’t. You need the apparatus, but I found this to be a sound investment.
IIRC, oxandolone melts at 235-238 celsius. It is hard to fake at that high of a temperature. Often faked with dbol, which melts at 165c.
Another example of often faked or swapped compounds:
Clenbuterol melts at 170c +/-
Albuterol at 180 +/-
If your clenbuterol raw doesn’t melt by 171 or so, it is probably albuterol. Wait until 180c to see.