
Originally Posted by
nicnitro
Written by: bushidobadboy in 2006
Sorry. What I'm saying is that there seems to be 2 main causes of test injection pain. 1) Test prop is said to resemble bee venom, and this is what causes the dreaded 'prop pain'. Heating the gear prior to injection seems to work very well in moderating the pain. 2) superhigh concentrations of gear can cause pain/tissue damage by two mechanisms.
Firstly, high BA is required to help hold all the gear in solution, plus UG gear sometimes has excess BA added to maintain sterility. This causes tissue necrosis if the BA is high enough/enough is injected in one spot. Secondly, as the oil, BA and BB (another co-solvent) leave the muscle tissue, they leave the test behind as crystals. This irritates the muscle tissue, and can cause actual mechanical damage as the crystals can be quite 'sharp'.
Neither of these two pain-inducing factors can be alleviated (as far as I'm aware) by heating. However, cutting with sterile oil can reduce pain, firstly by diluting the BA, and secondly, by spreading the crystals throughout a greater area/volume of muscle tissue. This is my understanding of the mechanisms anyway...