Oh stop being babys! The shit is cheaper than cheap, and I haven't felt any pain on it. What gauge needles are you guys using? I am using a 25 1 1/2 for ass and delt shots, and I haven't had any pain, flu, or anything for that matter. The bottles are overfilled, and my gains have been great. Maybe a couple of you need to try human grade. Some people just don't respond to some things too well. I do seem to see a mixed group. Some say it's great like me, and some say it sucks.