A good friend of mine told me he was able to repair an injured shoulder using this product. I'm willing to put in a few months to see if it helps. If it does I will continue to use it. I had a bone spur removed in each shoulder and had both rotator cuffs repaired. Things were coming along but real slow. Last November my left shoulder popped doing flat dumbell presses. It's been 7 months and the left shoulder is still at 50% of the right shoulder. Forr the record the right shoulder is not all that great yet either. No flat barbell benching, no incline benching, and no barbell behind the neck press capability.