BPC-157
What to know about BPC-157
BPC-157 is a synthetic 15-amino-acid peptide studied mainly in rodent injury and gastrointestinal models. Human outcome evidence remains extremely limited.
- How it may work
- Cell and animal work reports changes in VEGF signalling, angiogenesis, inflammatory markers, and tendon-cell migration. These are proposed pathways, not established human mechanisms.
- What research found
- Rat Achilles-tendon studies reported earlier functional and structural repair. Those findings have not been confirmed in a robust randomized human trial.
- What is not settled
- Human pharmacokinetics, dose-response, immune reactions, and long-term safety are not well characterized. FDA also flags limited safety information and peptide-impurity concerns for compounded products.
- Research and product status
- No licensed U.S. medicine contains BPC-157. Published animal findings do not establish a general-use product.
Research reference
- Research amount range
- 200–500 mcg per administration — not a starting amount
- Reference frequency
- Every day — catalogue input, not a personal schedule
- Evidence route
- No human administration route established by this catalogue's evidence tier.
- Reported timing context
- No strong time-of-day pattern; often split into two doses and placed near the area being worked on in community reports.
- What people report
- Discussed as days to a couple of weeks for soft-tissue and gut-related contexts in reports.
- Model accumulation timescale
- ~20 hours — about five half-lives with regular repeated exposure; not time to a result
- Storage
- Storage and in-use limits depend on the exact formulation and packaging. A compound name alone cannot establish temperature, diluent, or shelf life. Details
- Reported course context
- 4–6 weeks
- Reported break context
- 2–4 weeks Why
A research and community reference, not medical advice. Figures are descriptive, vary between sources, and are not a recommendation for use.
When results may show
- When change was measured
- Published BPC-157 repair findings come mainly from rat injury models. Those experiments cannot establish how many days or weeks a person should expect before pain, function, or tissue structure changes.
- When to assess
- No randomized human study supplies a defensible reassessment week. Community reports of days to weeks are anecdotes and should not be used as proof that a longer run will produce a result.
- Conditions and limitations
- Animal papers do not show that a human injection must be placed near an injury, combined with another peptide, or timed around food. Product identity and route remain major evidence gaps.
- When to stop
- No validated human target, maintenance phase, or quit rule exists. Extending exposure solely because an expected result has not appeared is unsupported; a severe or persistent reaction warrants stopping and prompt clinical review.
Research timing is descriptive, not a promise or personal instruction. A severe or persistent reaction needs prompt clinical review. This is not medical advice.
Combination evidence and cautions
What is known and unknown about BPC-157 alongside other compounds or medicines.
Key properties
- Formula
- C62H98N16O22
- Mol. weight
- 1,419.5 Da
- CAS
- 137525-51-0
- PubChem CID
- 9941957
External references
Structure note
A diagram is a reference representation of the named chemical structure. It does not establish the composition, purity, or identity of any particular vial.
Poorly characterized; published estimates vary widely.
No human dose-ranging study fixes an injected amount or schedule; the figures in circulation come from animal repair models and community reports, so no schedule table is shown.
Modelled level — every day
1× is the peak after a single dose.
- Steady-state peak
- 1.02× single dose
- Time to steady state
- 20hours
- Administrations
- 7/ week
Read off the modelled curve, not an even-interval formula
About five half-lives
Where these numbers come from
- Preclinical injury-model literatureMost BPC-157 evidence is rodent tendon, ligament and gut-repair models; human amounts are community-derived, not established.