The Peptide That Helps You Heal… Might Also Be Teaching Your Body to Scar

BPC keeps coming up in rooms where recovery actually matters.

I recently had a fascinating conversation with Dr. Jermerly Girmann, a friend, mentor, and one of the most dialed-in regenerative medicine doctors I know. He has personally helped put me back together more than once, and his practice works with everyone from everyday injury cases to professional athletes across multiple sports.

What made this conversation so interesting was what he has been seeing clinically with BPC in the context of post-surgical recovery, spine procedures, and complex orthopedic cases.

We only scratched the surface, but it deserves a much deeper discussion. So we’re going to film a full conversation together and unpack the real-world clinical patterns, the nuance, and the questions that most people are not talking about publicly. That full interview will be released inside the paid tier of the community. This is the kind of conversation that moves beyond peptide hype and into what experienced clinicians are actually observing in practice.

What caught my attention was that some of what he described seemed almost paradoxical compared to how BPC is usually talked about online. Most of the internet conversation sounds pretty simple. Tissue gets injured. Use BPC. Healing improves. In a lot of cases, that may be true. But, biology has a funny way of humbling you the second you start looking past the surface. The more we talked, the more I realized this wasn’t really a conversation about whether BPC is “good” or “bad.” That framing is too small. It was really a conversation about timing, terrain, and the physical space around the injury.Those three things can completely change how the same signal gets interpreted.That’s the part I keep coming back to.

Cellular medicine is not really about protocols. Protocols can be useful, but they are not the intelligence. The intelligence is in the cell. The cell is constantly reading its environment and trying to decide what makes the most sense: defend, repair, reinforce, remodel, migrate, calm down, build blood vessels, lay collagen, or shut the process off.

Our job is not to force the cell into a protocol. Our job is to understand the decision it is already trying to make and help it make the best possible choice.That sounds simple, but it changes everything.

One of the first things this made me rethink was fibrosis. Most people think of fibrosis as “too much healing,” but I’m not sure that’s the best way to understand it. I think fibrosis is often the body choosing reinforcement over flexibility. And from the body’s perspective, that can actually make sense.

If an area feels unstable, inflamed, compressed, under-oxygenated, mechanically irritated, or unsafe, the body may decide that the priority is not elegance. The priority is protection. It wants structure. It wants reinforcement. It wants to wall off the threat.

That may help in the short term, but long term it can create stiffness, tethering, poor tissue glide, nerve irritation, joint restriction, or scar that never really becomes functional again.

So scar tissue is not always random. Sometimes it’s a survival strategy that overstayed its welcome.

Think about what happens after surgery, especially something like radiofrequency ablation or a spine procedure where heat is involved. The body doesn’t experience that as a clean little medical event. There is tissue injury. There is inflammation. There are local changes in oxygen, pressure, movement, and blood flow. Damaged cells release alarm signals called DAMPs. I think of DAMPs like cellular smoke alarms. They tell the immune system, “Something happened here. Pay attention.”

Then immune cells show up, especially macrophages. Macrophages are interesting because they are not one thing. Early on, they behave more like inflammatory cleanup crews. Later, they shift toward repair and remodeling. That transition is necessary, but it also brings in more of the signals that tell tissue to build.

One of the biggest of those signals is TGF-beta.

TGF-beta is basically a “build and reinforce” signal. It tells fibroblasts, which are collagen-producing repair cells, to become myofibroblasts. Myofibroblasts are like fibroblasts with a tool belt and a winch. They don’t just lay collagen down; they pull, contract, tighten, and stabilize the area.

You need that early on. Without it, wounds don’t close well and tissue doesn’t regain integrity. If the environment keeps telling the tissue that danger is still present, TGF-beta can stay too loud for too long. Then you get more Smad signaling, which is the messenger system that carries TGF-beta’s “build collagen” instructions into the nucleus of the cell. That’s where the cell starts changing gene expression and behaving more fibrotically. Again, none of this is inherently bad. It’s all context. That’s where BPC gets really interesting.

When you look at what BPC appears to influence in preclinical models, you can see why people get such different outcomes. BPC seems to influence VEGFR2 signaling, which helps drive angiogenesis, or new blood vessel formation. That can be very useful because injured tissue needs supply lines. It needs oxygen, nutrients, immune coordination, and waste removal. BPC also appears to influence Akt and eNOS signaling. Akt is involved in cell survival and stress adaptation. eNOS helps regulate nitric oxide, which is important for blood vessel function and circulation. Again, in the right context, that can be a beautiful thing.

Then there’s ERK signaling. ERK is basically a cellular acceleration pathway. It tells cells to become more active, move, divide, grow, and participate in repair. If the tissue is ready to remodel, ERK can help move the process along. But if the tissue is already sitting in a TGF-beta-heavy environment, that acceleration may not be as innocent as it looks.Because now you are not just helping repair. You may be helping the repair crew work harder in an environment already leaning toward scar.

FAK signaling is another piece that really grabbed my attention. FAK is part of how cells sense attachment, tension, and mechanical load. This connects to mechanotransduction, which is just a big word for something very simple: force changes biology.

Cells respond to stretch. They respond to compression. They respond to tension, pressure, stiffness, instability, and restricted glide. The body is never listening to chemistry alone. It is listening to the physical space too.

That’s why I think “where” the injury is matters so much.

A tendon has one kind of mechanical environment. A joint capsule has another. The spine has another. The space around a nerve root has another. A thermally injured tissue bed after radiofrequency ablation has another.

These are not interchangeable.

If you add a repair-amplifying signal into tissue that has room to move, good blood flow, clean mechanics, and low inflammatory tone, you may get organized healing. If you add that same signal into a compressed, hypoxic, inflamed, mechanically irritated area where the body already feels unsafe, you may get a very different interpretation.

Same compound. Different conversation.

There was another detail from the literature that stayed with me because it fits this whole idea almost too perfectly. BPC may upregulate growth hormone receptors on fibroblasts. At first, that sounds great. Fibroblasts are involved in repair. Growth hormone and IGF-1 signaling can support rebuilding. So more sensitivity to those signals should mean better healing, right? Maybe.

But again, the devil is in the context. If fibroblasts are in a healthy remodeling environment, making them more responsive to growth and repair cues may help the tissue rebuild more efficiently. But if those fibroblasts are sitting in a tissue bed already biased toward reinforcement, collagen deposition, and TGF-beta activity, increasing their sensitivity to growth signaling could plausibly push the system further in that same direction.

That’s the part people miss when they reduce this to “BPC heals tissue.” A fibroblast does not just hear one signal. It hears the whole room.If the room is calm, organized, oxygenated, mobile, and moving toward remodeling, BPC may help. If the room is loud, inflamed, cramped, hypoxic, and mechanically defensive, BPC may amplify the wrong decision. That doesn’t make BPC bad. It makes the environment important.

And honestly, the more I sat with this, the more I realized how much of regenerative medicine is still being talked about backwards. People obsess over the peptide, but the tissue environment determines what the peptide means.

This is also where timing becomes such a big deal.

The first few days after surgery are not the same as week two, week four, or week eight. I don’t think of the days as rigid laws, but more like neighborhoods. Day 0 to Day 5 is generally the inflammatory neighborhood. The body is still figuring out what happened. Immune signals are high. Cytokines are active. Macrophages are changing roles. The tissue is trying to stabilize chaos.

That may not be the time to blindly amplify fibroblast activity, especially in someone who already has a history of dense scar formation, keloids, adhesions, adhesive capsulitis, poor tissue glide, or previous post-surgical restriction.

Once the inflammatory storm starts settling and the tissue moves toward the proliferative phase, often somewhere around Day 5 to Day 7, the conversation changes. Fibroblasts are already entering the area. New matrix is being organized. Blood vessel formation is needed. Repair signals may be more useful because there is now something to organize instead of just a fire to accelerate. Then later, around the remodeling phase, the goal shifts again. Now the question becomes: can the tissue clean up what it built? Can collagen align? Can excess scar be remodeled? Can myofibroblasts leave? Can the joint regain space? Can nerves glide? Can the nervous system stop guarding?

This is why I don’t love the idea of continuous, indefinite repair signaling. Healing needs rhythm. Signal, then silence. Build, then remodel. Push, then pause.

The body has to know when the job is done.

That’s also why joint space and physical space matter so much. A joint is not just a hinge. It’s an information system. When a joint has better space, better glide, better fluid movement, and better load distribution, the cells in that environment receive a different message.

Compression sends one message. Clean movement sends another. Instability sends one message. Organized tension sends another.

This is why movement after surgery is so misunderstood. It’s not “rest forever” and it’s not “load aggressively as soon as possible.” Movement is communication. Good movement tells collagen how to align. It tells fascia where to glide. It tells nerves that the area may be safe again. It tells the nervous system, “You don’t have to keep bracing this place like it’s about to fall apart.”

Too much force too early can distort the scaffold before it’s ready. So the goal is not just more movement. It’s the right movement at the right time. That’s the same lesson as the peptide conversation. More is not always better. Earlier is not always better. Louder is not always better.Better is better. And better depends on what decision the cell is trying to make.

This is why I think redox balance matters so much too. Redox is basically the cell’s stress language. It helps determine whether the cell feels safe enough to make energy cleanly and participate in organized repair, or whether it should shift toward defense and survival. When redox tone is poor, the body may choose armor over adaptability. That phrase keeps coming back to me. Armor over adaptability. A fibrotic tissue is often an armored tissue. It may be strong, but it is not necessarily free. It may be reinforced, but not necessarily functional.

So if we want BPC to work for someone and not against them after surgery, the question can’t just be, “What dose?” or “Where do we inject it?” The better questions are: What phase is the tissue in? Is this person scar-prone? Is the area compressed? Is there enough joint space? Is there nerve glide? Is oxygen delivery adequate? Is inflammation resolving? Is glucose stable? Is sleep supporting repair? Is the nervous system still guarding? Is the rehab strategy helping the tissue remodel or teaching it to brace harder?

That is the difference between protocol thinking and cellular thinking.

It’s also why other tools may matter. Omega-3s, curcumin, NAC, vitamin D, red light therapy, HBOT, and thymosin beta 4 are not interesting because they are magic. They’re interesting because they may change the conversation the cell is having. Some may help calm excessive inflammatory or fibrotic signaling. Some may support redox balance. Some may improve oxygen dynamics. Some may help tissue remodel with less restriction.

None of these are a substitute for clinical judgment. And I want to be clear: we still do not have randomized human data showing that BPC causes fibrosis after surgery. A lot of this is mechanistic reasoning from pathways, animal models, clinical observation, and pattern recognition. That means we should be careful with certainty.

But we should also be careful with simplicity.

Because “BPC heals” is too simple.

A better statement might be: BPC can amplify repair signals, and whether that becomes organized healing or excessive reinforcement depends on the terrain, the timing, and the physical space the tissue is living in.

That’s the real lesson for me. The peptide is not the intelligence, the cell and the tissue environment is.

The peptide is just entering a conversation that was already happening. Our responsibility is to understand that conversation well enough to help the cell make the right decision. if you’re interested in more personal guidance and how I sequence, BPC is part of our healing protocol based on your individual circumstances DM me and we can set up a time to talk. In the meantime, stay curious, ask questions, and help each other through sharing your experience and paying your knowledge forward.

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