BPC-157 for Dogs Dosage Chart — Weight-Based Amounts

BPC-157 for dogs is scaled by body weight — not by age, not by breed, and not by how bad the limp looks. On the K9-REPAIR label, pawgen sets three weight bands: dogs under 20 lbs reference 10 units, dogs between 20 and 55 lbs reference 15 units, and dogs over 55 lbs reference 20 units, measured on a standard insulin syringe once the vial is mixed. Because 10 units equals 1 mg of each compound after mixing, those bands work out to 1 mg, 1.5 mg, and 2 mg of each peptide. Those are the label's weight-scaled reference amounts, and they are the right starting point for a conversation with your veterinarian — not a substitute for one.

That is the whole chart. The rest of this page explains why it is built that way, how to read the syringe without second-guessing yourself at the kitchen counter, and why the charts and PDFs circulating on forums are harder to use safely than they look.

Why body weight is the only variable that moves the number

A peptide introduced into the body distributes through blood and tissue. A 12-lb terrier and a 95-lb shepherd do not have remotely the same volume to distribute it through, so the same amount lands very differently in each of them. Weight is the variable that tracks that difference most reliably, which is why every sensible reference for peptides in dogs is organised by pounds.

Notice what is not in the chart. Age is not in it. Breed is not in it. The specific joint, tendon, or recovery timeline is not in it, and deliberately so — tying an amount to a condition would be a treatment instruction, and that is a veterinarian's call, not a label's.

The bands are also bands, not a per-pound multiplier. There is no arithmetic where you take a dog's weight, multiply by a coefficient, and arrive at a number. Banding is how the label handles the fact that biological scaling is not a straight line and that a 54-lb dog and a 56-lb dog are not meaningfully different animals. If your dog sits right on a boundary, that is exactly the kind of judgement call to bring to your vet rather than resolve with a calculator.

The weight-based reference chart

Dog's weight	Reference amount of each compound	Marking on a standard insulin syringe
Under 20 lbs	1 mg	10 units
20–55 lbs	1.5 mg	15 units
Over 55 lbs	2 mg	20 units

The reference point underneath all three rows: after the vial is mixed, 10 units equals 1 mg of each compound, and a standard insulin syringe holds 100 units in 1 ml. Every row above is just that same relationship applied to a bigger or smaller dog. For the full mixing, storage and handling steps, see the K9-REPAIR preparation and handling guide.

These figures describe what is in the K9-REPAIR vial and how the label scales it. They are not instructions for a diagnosis, and they do not change based on what your vet has found. Bring the chart to your appointment and let your veterinarian tell you how, whether, and when it fits your dog's situation.

How to read an insulin syringe — the part people call a calculator

Searches for a BPC-157 dosage calculator almost always resolve to one small conversion, and once you have seen it you will not need a tool again.

A standard insulin syringe is marked in units. One hundred units fill 1 ml. So a unit is simply one-hundredth of a millilitre — a volume marking etched on a barrel. It carries no information at all about what is inside the syringe.

The number on the syringe only means something when you know the concentration of the liquid in the vial — a unit is a measure of volume, not a dose.

That is why the K9-REPAIR label states the bridge explicitly: 10 units equals 1 mg of each compound after mixing. With that one fact, the syringe markings do the arithmetic for you. Draw to 10 for a small dog, 15 for a medium dog, 20 for a large one. No calculator, no decimal conversions, no mental maths while your dog waits.

Two practical notes. Read the syringe at eye level on a flat surface — looking down at an angle distorts where the plunger appears to sit. And confirm with your veterinarian that you are using the right syringe type before you start, because a tuberculin syringe is marked in millilitres rather than units and the two are easy to confuse under pressure.

What a downloadable chart, PDF, or forum thread can't tell you

There are plenty of BPC-157 charts circulating as PDFs and screenshots, and they get shared enthusiastically on Reddit and in breed groups. The problem is structural rather than one of good faith.

Most of those numbers originate in human research-peptide communities, where vials come in different sizes and are reconstituted with whatever volume of bacteriostatic water the buyer chose. Change the reconstitution volume and the same vial produces a completely different concentration — which means the same "15 units" can represent wildly different amounts of peptide from one kitchen table to the next. A unit count copied out of a forum post, detached from the vial it was calculated for, is not a dose. It is a number with nothing behind it.

This is also where third-party testing stops being a marketing line and starts being the thing that makes a chart usable. If you cannot verify what concentration is actually in the vial, no chart built on top of it can be trusted — you are measuring precisely against an unknown. A certificate of analysis from an independent lab is what turns "10 units equals 1 mg" from a claim into a figure you can measure against. pawgen publishes COAs for K9-REPAIR for exactly that reason.

So if you came here looking for a printable chart: the three rows in the table above are the chart. It is short because honest dosing references are short.

What BPC-157 and TB-500 actually do, and why owners run them together

BPC-157 is a pentadecapeptide — a fifteen-amino-acid chain whose sequence corresponds to a segment of a protein found in gastric juice. A substantial body of animal research, much of it from Predrag Sikiric's group at the University of Zagreb, has examined its effects on connective tissue, with findings that point toward support for angiogenesis — the formation of new small blood vessels — and for the fibroblast activity involved in tendon and ligament remodelling. Blood supply matters enormously here: tendons and ligaments are poorly vascularised compared with muscle, which is a large part of why they remodel over months rather than days.

TB-500 is a synthetic fragment of thymosin beta-4, a naturally occurring actin-binding protein present in most mammalian cells. Research suggests its role centres on cell migration and actin regulation — in plain terms, on helping repair cells get to where tissue is being rebuilt.

The two sit at different points of the same process, which is why owners increasingly adopt them as a pair rather than individually. K9-REPAIR combines both in one weight-scaled formulation, which is also why the chart above gives a single unit figure covering both compounds instead of asking you to measure two things.

This is emerging science that owners are choosing to use, and the honest framing is mechanism rather than outcome. BPC-157 and TB-500 are not FDA-approved veterinary drugs. Research suggests how they work; owners report why they keep using them through recovery. Neither of those is a promise about your dog, and nobody should sell you one.

Dogs and situations that need a veterinary conversation first

Some cases do not belong on a chart at all, and the correct answer is a phone call rather than a number.

Puppies still laying down growth plates, pregnant dogs, and nursing dogs are in that category. There is no weight band that resolves those situations, and anyone who hands you one is guessing. Talk to your veterinarian.

Dogs on prescribed medication are another. If your dog is on carprofen, Rimadyl, gabapentin, Librela, prednisone, or anything else your vet has written, none of it stops or changes because you added a supplement. Those prescriptions are doing a defined job — pain control, inflammation management, post-operative cover — and that job does not disappear. Tell your vet what you are adding so they have the full picture.

And if there is a surgery date on the calendar, keep it. A torn cruciate ligament is a mechanical failure in a joint, and no peptide reorganises a knee. Surgery restores the mechanics; rehab rebuilds the muscle that holds them; supplements operate in the space that proper care creates. They are not an alternative to any of it.

Key Takeaways

• BPC-157 for dogs is referenced by body weight, in bands — not by breed, age, or condition.
• The K9-REPAIR label scales to 10 units for dogs under 20 lbs, 15 units for 20–55 lbs, and 20 units for dogs over 55 lbs, after mixing.
• After mixing, 10 units equals 1 mg of each compound; a standard insulin syringe holds 100 units in 1 ml.
• A unit marking is a volume, not a dose — it only means something alongside a verified concentration, which is what a third-party COA provides.
• Charts and PDFs copied from forums were usually calculated for a different vial, a different reconstitution volume, and a different species.
• BPC-157 and TB-500 work at different stages of tissue repair, which is why owners adopt them together through recovery.
• Puppies, pregnant and nursing dogs, and any dog on prescribed medication need a veterinary conversation, not a chart.

Your veterinarian owns the diagnosis and the treatment plan — the imaging, the prescriptions, the surgical decision, the rehab schedule. Nothing on this page changes that, and a dosage chart is not a diagnosis. What peptides like BPC-157 and TB-500 can do is occupy the supporting space that good veterinary care opens up, which is precisely how owners are using them: alongside the plan, never instead of it. Bring the chart, bring your questions, and let the person who has examined your dog make the call.

To look deeper into the formulation, you can review the independent lab results at /coas/, see what is in the K9-REPAIR vial at /shop/, check delivery coverage at /location/, or start at pawgen.

Owners exploring peptide support for their dog can review K9-REPAIR — BPC-157 + TB-500 formulated for dogs — at https://pawgen.com/. BPC-157 and TB-500 are not FDA-approved veterinary drugs. Nothing in this article treats, cures or prevents any condition; every decision about your dog's care belongs with your veterinarian.