Identifying a legit pharma HCG labtest can be difficult due to the abundance of MSD Pregnyl counterfeits, so answering this properly will require a bit of a scavenger hunt.
@SkankHunt you remember any tests of Choriomon or non-indian pharma HCG from recent years? Indian pharma HCG has tested abysmal but someone is finally sending Zyhcg to Janoshik these days, which should have the best chance among indian pharma HCG products.
Should the legitimacy of Janoshik's HCG testing method/accuracy genuinely become a point of concern, I'll buy some rather expensive HCG from the german pharmacy and send that for testing in its original sealed box, but as multiple vendors had tested HCG Livzon back when it was affordable, I do consider that decent evidence.
Mine tested 10.000iu the same way QSC's tested 5000iu (or above, don't recall) via chinese testing, which converted to exactly 7000iu via Janoshik's method. I tested six vials just to make sure of that and the variance was almost non-existent.
I get reports about red welts from my HCG sometimes as well, which can be for several reasons such as improper depth on subq injections, improper storage of the product (see how fragile that is in my thread about degradation testing HCG) or using an insufficient amount of liquid for reconstitution (1ml or less) resulting in too high a concentration of HCG in the solution, especially because many customers think they were previously using 5000iu HCG (which could have been just 2500-3000iu) and basing their idea of how much liquid should be fine for them on that erroneous assumption.