I've got some oil I had a friend wanting to get rid of I've had for about a year. Hes probably used about half the bottle so there's a good bit left. My source is out of tren a for the moment and I'm about to run out and never planned on using it because someone else has used the bottle. Is there a way to sterilize it to be 100% safe or should that be something I shouldnt even worry about using? Won't use it if there could be a risk