Only thing I can think of is that wen it was delivered (I'm speaking for someone else of course, I would NEVER engage in illegal purchase of steroids) there was a mix up and the package sat out side for 4 days. The temperatures ranged from 10 degrees to 40 degrees during those 4 days. Surely that would not have hurt it. Would it?? Plus this hcg stings slightly during injection. Never experienced that either.