Going back a couple of posts here but I remember a video from Joe Rogan's podcast talking about turinabol. In short they were saying that the stuff in turinabol (creatine) is used to cut cocaine or some shit in China, which may have been the culprit in the positive test. I probably fucked up in all of that, but China, Creatine, Cocaine.
Didn't feel like digging through the video, but ,“You want to know the craziest fucking rumor that I heard? I can’t tell you who told me this. This is the craziest one. The stuff that [Jon Jones] tested positive for takes a long time to get out of your system, right? You know where else you find that stuff? You find it in creatine. When they get creatine, sometimes from China, it’s tainted with steroids. They use that creatine to cut cocaine. One of the things they cut some cocaine with is creatine, because it looks like cocaine. So if he was partying: ‘Jon, you want to do a bump, it’s really good stuff’… ‘Hey man, I can’t test positive for anything’… ‘It’s just coke bro, it’s not even cut! He had a birthday about 10 days out from the fight.”