Lol. These videos crack me up. 90% of the time these things are due to unsterile injections. You would be amazed at the number of guys who re use syringes/needles. Ive never known anyone to have a real abcess. I had one friend go to the hospital, was put on antibiotic because he thought he had an infection due to swelling in inject area. I think it was from too much oil into his bicep because he used that same vial for a few weeks before without any issues.
I know guys who use a pin 2-3 times before discarding, and for no reason other than being lazy, they have plenty of money and access to them.
If you are concerned of sterility issues, it's a very easy fix. I'm sure there are labs out there who aren't very sterile but most I've seen are. This stuff is very easy to make and nothing is sterile until filtered so even though they show you all this stuff looking dirty and whatever, it's really not a concern as long as they filter and keep sterile from that point. Don't get me wrong, it should be kept as clean as possible the entire time, but filtering is the only thing that will make it sterile, BA is added to prevent the new growth of bacteria.
If you have any concerns get a whatman syringe filter, and filter every bottle you purchase. They are inexpensive and you can run 100ml thru one filter fairly easily.
Most of the people who get on the net learn proper techniques, but think of how many guys you know in the gym who have used gear for years that still don't really have a clue. I have a friend who got me started years ago and he has been using for atleast 15-20 years. He thinks mast prop is a blend of masteron and test propionate. Lol. He doesn't understand esters even though I've explained it a million times. He told me the other day he needs some prop so he can start cutting, he has a Tom of enanthate but said he can't use that because that's a bulking test. Hahahaha.
This same guy uses each pin multiple times yet wipes the tops of vials and inject area before inject. I asked why wipe them and use a dirty needle. He said you can't get infection because it was in your own body and wiping the tops/skin will prevent infection even from a used needle because it instantly kills bacteria. Lol I guess he forgot that pin is hollow.
Also, raw for orals doesn't have to be sterile and several of those pics showed orals. I don't want them to be dirty but they are oral, the body has defenses for orally ingesting. Do you really think everything you eat or drink or supps taken are sterile? Nope.
The vials they showed at the end made no sense. They show a vial that crashed and crystalized on the bottom. Then they show a nice clear vial. Things crash, it happens. Hg gear can crash just as easily. I've rarely had crashed vials but add a little heat to them and they go right back into solution and work perfectly fine so they can show those pics all they want but I've seen crashed vials straight from the compounding pharmacy.