10 weeks ago I pulled my left upper peck muscle. There was no bruising or swelling just a popping sound when I pulled it. Took 2 weeks off did chest boom pulled again I was so pissed and desparate I didnt know what to do. So I ordered tb-500 to see if it would help. I ran it at 5mg a week and for the first 3 weeks I did no chest but I still worked arms,back,shoulders and legs. After three weeks I did smith bench for reps and stayed at 185 for the first week back on chest, next week went to 225 for reps then the sixth week I did 275 and full range of motion. 7th week I was gonna do smith but someone was using it so I reluctantly did bench with a barbell. Went up to 225 for reps no pain and full range of motion. 8th week went up to 275 for reps and now on the 10th week 295 for reps. Tb-500 has fully healed me and quicker then I would have on my own. I will continue to run it at 5mg a week for awhils, also I had bicep tendonitis in my left shoulder and now its completly gone. If ur injured I highly reccomend u try it 5 stars across the board.