I did a 3-4 month course of BPC, locally injected around the hip. Definitely seemed to help with the muscle/tendon sensitivity and decreased the need for constant manual therapy. Probably wound up about an even cost vs seeing physio/RMT for the same relief. I’m considering a second round to help with training recovery, so obviously felt it did something useful.
I did it post op, but in general I think it falls into the -can help with pain & function but won’t actually fix the problem- camp like PT & other injections. So depending on what your aggravating factors are for pain it could help you be more successful in combination with PT or just get you to a point where pain is low enough you don’t need to pull the trigger on surgery.