Test Cyp 300

I was taking test cyp 300 from one source but I was geting crazy pain in my ass or where evere I shot it so I switched sources and have had no pain but I also dont feel the same how can I do a source check ot see if it’s legit

Shoot me a PM and I’ll see if I can help you.

I’m quite familiar with many sources. You really shouldn’t be having pain from a standard product like that. Have you used before without problems?