I did that a while back. T400 and TT deca 300. Mixed 1ml T400 and 1 ml deca 300- 3 times per week. I got 2 oil abscesses on my ass from the solution not being absorbed fast enough. I was injecting each spot every 12-13 days. It took 3 months before the oil was finally absorbed into my system. The solution is to strong and the BA% to high. If you have used in the past, the scar tissue will not help absorbsion and you might have the same problem I did. If you do it, keep a close eye on the injection spots and don't use the same spot for 2 weeks. If the injection spot looks puffy and it is soft to the touch and not a hard little knot, or you get an oily bloody mixture in the syringe when you aspirate, get to the Dr immediatly to get anti-biotics. Do not inj there again, and do not inj any solution that has been aspirated and the oily bloody mixture has gotten into the syringe...THROW IT AWAY!!!! A steril oil abscess can be delt with and will eventually be absorbed. If it gets infected, it will become Cellulitis, and will either have to be drained in a hospital, or be cut open, the oil removed, and the dead tissue cut away by a surgeon. If you get an oil abscess, DO NOT TRY TO DRAIN IT YOURSELF!!! Leave it alone and see the Dr. One tiny microbe can cause the entire area to get infected!! Later