Good chance your Primo was actually Tren
Impossible unless hplc testing at multiple phases including end user with finished product was wrong. Plus primo raws and finished looks and feels absolutely nothing like tren (stupid easy to discern to the naked eye between those two especially - color of raws and shape, color of finished in solution). Could not be more different. I also had a single batch of roughly 40 grams (eighteen over filled 10ml bottles at 200mg/ml) which allowed for running multiple times and isolating impacts on bloods. Yeah, I'm type A, thorough as fuck, run bloods and get testing.
Primo hits E2 substantially as well for what it's worth. No other markers hit though. I've run tren more times than I can count and tren hits a ton of areas (including a mild but noticeable hit to liver markers on me). Like I said, zero potential my primo was tren... Zero.
I'd also point to the numerous people trying 200mg of primo weekly alongside their trt. Typically older guys who will pay for bloods and care about their health. More posts than I can count stating hits to lipids from primo but no other markers besides E2 effected. All very consistent.
That said everyone is different so try for yourself and see.