Ok guys. . . everyone says u cant mix water based steroids and oil based steroids. I've been mixing Test prop, Tren Ace, and a horse supplement called Dynacleine, which is only ATP. The Tren and Test are oil based and the Dynacleine is water based. I was wondering why ppl say to not mix cuz they do not hurt to shoot mixed. . . So what is the prob with mixing? Thanks guys.