Morning
@animal-inside - BPC157 works better for tendon/ligament tears than muscular issue (opinion based on studies and personal experience). Hence, this is on your side. If I was you I would still use both.
You are a big guy and one of the reasons I suspect people state it didn't work is they did not take enough or long enough. It takes a while to work (weeks, and you still need to rehab/take a break or significantly reduce the stress on the tendons to give them time to heal).
I am believe you are close to 300 lbs if I recall correct so I am not as big as you. I take a minimum of 1 mg/1000 mcg's of BPC157 per day. The old / standard protocol was 250 mcg's twice a day and I never found this was enough.
I also never found a difference between once or twice a day applications. I have used as much as 2 mg a day of BPC157.
Again opinion - do not buy a mix, buy vials separately but you can mix them in the same insulin syringe when being drawn for application.
Depends who you ask but many say TB500 twice or three times a week is fine. It has a very short half life but binds to actin and helps tissue repair (very basic explanation). Even with the short half life, it is reported to have systemic presence and activity for days but all I can find is anecdotal reports.
For the sake of a steady amount in the system and best chances of healing quicker, I would inject it daily in the same insulin syringe as the BPC157. 1 mg per day, but I would reduce this amount as you get better but I would keep the BPC157 at the 1 mg longer. Again, opinion and many may disagree.
I do not care what anyone says regarding systemic vs. injecting as close to the injury as possible, based on experience BPC157 works much better healing tendons when injected as close to the injury as possible. Yes, it is systemic in nature as it helps other injuries and I won't go on about the real experiences healing one side at a time and how much better it works when injected as close as possible vs. in your mid section for example.
TB500 had no difference whatsoever no matter where I injected it and is reputed to be completely systemic which I agree with. Hence if it is a shoulder ligament then injecting both into your shoulder will remove any chances of it not working as well systemically. Why take the chance? If systemic you can inject it anywhere. If one works better closer to the tendon/ligament inject it as close as possible.
If you are going to give this a fair trial, do it for at least 2 months, and don't expect great results if you plan to inject it and keep hammering heavy weights. No one likes benching 10 lb. DB's but I have injured myself bad enough to use the peptides, go to physio/alternative healing practitioners/and drop my weight down to next to nothing. I refer to it as active healing. Stretching and going through the motions adding another 5 lbs to each exercise every time I go through my workouts. What is a few months in decades of lifting weights? You will be right back to where you were before in no time, plus you give yourself a chance to deload/heal other issues that may be creeping up you are not aware of yet.
This is all opinion based from reading, talking to multiple members and IRL power lifters. I am not saying this is correct, but I know what works best for me and a few other IRL guys who can lift much more than I can.
I recall you had a bad chest muscle tear as well and then went camping - maybe 2-4 years ago? Hopefully, any lingering issues this will help as well.
If I had to pick one healing peptide it would be BPC157, but if I was eager to hasten my recovery time - I would take the two and add in KPV too at 500 mcg per day.
Best of luck.