Local vs systemic BPC-157 — the 'right next to the injury vs belly fat' debate, one more time

Counterpoint: for a superficial injury like lateral epi or patellar tendon, 'local' and 'systemic' aren't really different because the pin goes Sub-Q over the tissue anyway. For something deep like a labrum or meniscus, 'local' means intra-articular which most people shouldn't be doing at home. So the debate kind of collapses.

I've run it both ways on the same injury type (medial epi, twice, two years apart). Local felt faster the second time but I also had better sleep, better diet, and started rehab two weeks sooner. So I agree with you — the N=1 variance drowns the signal.

@shoulder_spring this is the best take in the thread. 'Local' is a spectrum and for most home-pin injuries it's just Sub-Q over the area. That's not the same as the targeted delivery people imagine.

I'll defend local. Achilles — five years of on-off tendinopathy. Systemic BPC did nothing over 8 weeks. Sub-Q pin 2 inches proximal to the insertion, daily for 4 weeks — pain dropped from 5/10 to 1/10. Same vial, same dose, different site, different outcome.

@nopain_noreign that's exactly the kind of anecdote I can't dismiss. One question: was anything else different? Footwear, load management, heel-raise protocol?

The 'punches above its weight PK-wise' line is doing a lot of work here. The oral rodent data is Sikiric's lab almost exclusively. One lab, one model, one primary investigator. I'd hold that loosely until there's independent replication.

@hexaclinic heavy slow resistance stayed the same across both runs. So not perfectly controlled but the loading was similar. I can't rule it out but it's the cleanest comparison I have.

Agree with @showmethestudy. The human injected BPC literature is effectively zero. Everything we do is extrapolation from a single rodent research line, decades old at this point. Doesn't mean wrong, means uncertain.

@acl_again no. The graft site isn't accessible for safe pinning and the rest of the knee you shouldn't be going near. Abdomen is fine.

Pre-surgery ACL. Planning Sub-Q abdomen because I can't pin near a joint that's about to be cut open. Any reason to switch to local once the incisions heal?

I split the dose. 250mcg in the flank systemic, 250mcg Sub-Q over the affected knee. Makes me feel better. Placebo, probably, but cheap placebo.

@joint_hunter within a few inches of the skin over the tissue is what most people mean. Same muscle group is usually fine. You're not doing surgery, just creating a Sub-Q depot near the target.

Question from a newbie reading along — when people say 'over the injury' Sub-Q, how close is close enough? Within a few inches? Same muscle group?

For this thread to actually resolve we'd need a head-to-head at a matched dose on a matched injury. That study doesn't exist and probably won't. We're arguing vibes.

For what it's worth, deep abdominal muscle tear 3 years ago, pinned in the opposite flank because the target area was too painful to touch. Healed on a faster-than-expected timeline. So systemic worked when local wasn't even an option.

I keep seeing 'flank' — is that just the side of the torso above the hip? Sorry if this is obvious.

@bpc_baby yes, the soft area between the ribs and the hip, on the side. Pinch a bit of fat, 29g insulin pin, Sub-Q. Fine site.

Gonna toss in: there's no harm in local for a superficial injury. It costs nothing extra (same volume, different site) and it at least feels like you're aiming. I'd rather have the user engaged with the protocol than abstracted away from it.

@kineticdrift fair. The psychology of local is underrated. If it makes someone stick to the protocol, it's pulling weight regardless of the PK story.