What is BPC-157?
BPC-157 is a synthetic 15-amino-acid peptide derived from a protective protein that occurs naturally in gastric juice. In a research context it is probably the best-known healing peptide and is linked to the repair of tendons, ligaments, muscles, the gastrointestinal tract and nerves.
It is used subcutaneously, either systemically (e.g. into the abdomen) or near the site you want to target. It ships as a freeze-dried powder you dissolve in bacteriostatic water.
Comparison
BPC-157 alone and in combination
BPC-157 next to the tablet, the blend with TB-500 and TB-500 alone, as stated in the TPD lexicon. Tap a card to open its entry.
Simplified: in the only study of BPC-157 and TB-500 together (rats, Achilles tendon) the combination added no benefit. 10
How it works
In animal models, BPC-157 mainly promotes the formation of new blood vessels (angiogenesis) and engages the nitric-oxide system, which is important for blood flow and tissue protection. From that follows the accelerated tissue healing repeatedly shown in preclinical research.
Important for honesty: these mechanisms are studied almost exclusively in animals. In humans, much of it is assumption, not proven.
Where it acts
Where BPC-157 acted in experiments
Tap a point or a card. Colour = target, grey = observed. Almost all from animal and cell studies.
- Stomach and oesophagus
Protection of the mucosa against alcohol and painkiller damage (rats)5
Observed in trials - Gut
Colon-skin fistulas closed, injected as well as in the drinking water (rats)6
Observed in trials - Tendons
Tendon cells grew out more and survived oxidative stress better (rats)7
FAK - Blood vessels
More new vessels and faster blood flow recovery in the leg after vessel blockage (rats)8
VEGFR2 - Muscle, ligament and bone
Better healing in animal models according to a systematic review3
Observed in trials - Liver and kidney
Fast breakdown into fragments, excretion via urine and bile (rats, dogs)9
Observed in trials
Known targets8
Compound CHEMBL4297358: two described targets, type of action on each card.
- Gene
- PTK2
- UniProt
- Q05397
- ChEMBL
- CHEMBL2695
- Action
- More strongly activated in tendon cells (Chang 2011), signal for cell migration
What you need
For subcutaneous use you need:
Supplies
5 things, numbered as in the picture
Tick off what you already have. Vial and BAC water are our real shop photos at the same size.
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BPC-157 vial
The BPC-157 vial with the freeze-dried powder
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Bacteriostatic water
Bacteriostatic water to dissolve it
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U-100 insulin syringes
U-100 insulin syringes
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Alcohol swabs
Alcohol swabs for the vial cap and the skin
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Sharps container
A sealable sharps container for used needles
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Reconstitution
The powder is dissolved in bacteriostatic water. How much water you add sets the concentration and therefore how many units you draw for your dose on the insulin syringe.
Use the peptide calculator for this: pick your vial size and the water volume to see the concentration and units per dose.
When dissolving, just add the bac water, it does not matter if it hits the powder directly. Then swirl or shake until everything has dissolved, both are fine.
Step by step
Dissolving the powder
Four steps, the same for every vial size.
- 1Wipe the cap
Clean the rubber stopper with an alcohol swab.
- 2Add BAC water
Just add it, it does not matter if it hits the powder directly.
- 3Swirl or shake
Until everything has dissolved, both are fine.
- 4Draw up
With the U-100 insulin syringe.
Injection
The injection is subcutaneous, into the fat layer under the skin. For a specific target (e.g. an irritated tendon) many inject as close to the site as possible, otherwise systemically into the abdomen (keep clear of the area around the navel), the front and the inner side of the thigh or the back of the upper arm.
Injection
Where and at what angle
Pick a spot or switch the angle. Subcutaneous means: into the fat layer, not the muscle.
Rotate the spot each time, never the same one twice in a row.
Rule of thumb: where there is more fat under the skin, insert straight at 90 degrees. In lean people with little fat, 45 degrees, so the needle stays in the fat layer. Simplified diagram.
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Clean the spot with an alcohol swab and let it dry
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Pinch up a small fold of skin
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Insert the needle: at 90 degrees where there is more fat under the skin, at 45 degrees in lean people with little fat
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Inject slowly, wait a moment, then withdraw
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Put the needle straight into the sharps container
Rotate the site.
Dosing
Dosing
Dosing, titration and syringe
Loading the dosing information …
- Getting started and stepping up, drawn as a staircase
- Units on the U-100 syringe for every step
- How long one vial lasts
What the research shows
Honesty matters here: BPC-157 has a very large number of animal studies with impressive healing results, but barely any solid human studies. Much of the work also comes from a single research group, which limits how far it generalises. It is not approved as a medicine anywhere.
Meaning: the preclinical base is extensive, but translation to humans is not proven in study form. For context, there is a review with links below.
Study results
What the trials measured
Interactive: switch tabs, tap points, show or hide arms. Arms are named relative to each other, no dosing advice.
Where the knowledge on BPC-157 comes from3
Share of the 36 studies in a systematic review (literature up to June 2024)
The only human study in the review was a retrospective analysis of knee injections: 7 of 12 people reported less knee pain for more than 6 months.
Participants by route4
All three published human studies on BPC-157 (review, search up to June 2026)
None of the three studies had a control group, the review rates the certainty as very low. None of them injected under the skin.
How much reached the blood after an injection into the muscle9
Absolute bioavailability in percent, range as reported
The half-life was below 30 minutes in both species. There are no such measurements in humans.
Research status
Where the research stands
Registered trials with BPC-157. A phase 1 trial with tablets from 2015 (NCT02637284) is listed with unknown status and without results, it is not shown here. As of 26 Oct 2026. 11
- Preclinical 35 of 36 studies in the review in animals and cells
- Phase 1 1 trial, 0 completed
- Phase 2 no registered trial
- Phase 3 no registered trial
- Approval not yet
Show all 1 trial on a timelineHide timeline
NCT07752381 · 40 participants, started Sept 2025, primary endpoint reached Nov 2025.
Registry entry ↗ · Results not yet in PubMed
Bar: start to primary endpoint (planned for running trials). Green = completed, blue = progress until 26 Oct 2026. Phase 1: 1 trial on safety and pharmacokinetics, not shown as bars.
On the skin
In animal studies BPC-157 was also put directly on wounds as a cream. In mice with burns a thin layer of BPC-157 cream improved wound healing compared with a cream without active ingredient (Mikus 2001). This has not been studied in humans.
Side effects
In the animal studies BPC-157 is considered remarkably well tolerated, with serious side effects rarely described there. In humans, however, systematic safety data are missing, especially for long use. Mostly only mild injection-site reactions are reported. From the thin data follows: dose carefully and in phases rather than continuously.
Tolerability
Side effects in the human studies
Out of 100 participants, how many had a treatment-related side effect. Three small studies without placebo.
| Event | Participants |
|---|---|
| Treatment-related side effects4 | 0% |
Zero does not mean safe here: 30 people are too few to see rare side effects. One review warns of risks from unregulated manufacturing and contamination.43
Practice
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Use in cycles over a few weeks, not endlessly continuous.
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For a local target, inject near the site.
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Sleep, protein and rest support the healing BPC-157 relies on.
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Keep expectations realistic, the strong data come from animal models.
Storage
The undissolved powder is robust, normal room temperature (around 20 to 25 degrees) is fine, ideally kept in the dark. The reconstituted solution goes into the fridge (2 to 8 degrees) and stays stable there for at least 4 to 6 months with barely any loss of potency, in practice considerably longer. The bacteriostatic water brings a preservative that keeps the dissolved form stable for longer.
Shelf life
How long it keeps
Robust, no fridge needed.
At least 4 to 6 months with barely any loss of potency. The bacteriostatic water brings a preservative.
- Keep it dark
- Dissolved: 2 to 8 degrees
- Note the mixing date on the vial
