Hey you guys a couple weeks ago I was deadlifting 455lbs and on my 4th rep I felt a and heard a loud pop and it hurt pretty bad. Went to the doctor and he thinks it?s my teres major and I pulled it or slight tear. I think it could also be a tendon idk. But my question is I?ve heard a lot and Mechano Growth factor and how it?s awesome for healing injuries very fast and I?ve also heard it?s legal for ?research? purposes so I was wondering if anyone has any experience or sources for it. Thanks guys