I was told lgd was for tendons and ligaments as well. I used it for about 2 1/2 months because I had a problem with a ligament in my right shoulder. I also stacked it with osta and yk11. I also trained in such a way to baby my shoulder. It took awhile, but alas i have little to no shoulder problems of course i can't say with absolute certainty that it was the lgd, but i do believe it helped, gained modetate strength while taking it too. The shoulder pain i had was debilitating and really compromised training. But like i said, no more pain. Ive heard that NPP helps repair damage as well by the way. Hope this brings a little clarity to your inquiry. Good luck!