I've had gear from axio that got a little cold where I stored it. It crystallized on me. I didn't figure it out right away and wasted some of my gear till I figured out on my own to warm it up a bit. I don't know all the steroids that will crystalize, I do know that nandrolone does. I seen a post a long while back on this subject and thought it may be a helpful way to test your gear.