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PeptidesEvidence: Preclinical-dominant

BPC-157 Dosage Charts: Where the Numbers Come From

Written by
Daniel Reyes, PhD
Medically reviewed by
Dr. Sarah Lindqvist, MD
Published
June 20, 2025
Updated
June 20, 2025
Last medical review
June 20, 2025
Reviewer scope
Metabolic health
Measuring tape representing the body-weight rows on a BPC-157 dosage chart extrapolated from rodent data, not human trials

Every BPC-157 dosage chart online derives from the same place: rodent studies around 10 mcg/kg, multiplied by human body weights. A "200-lb male" row is 90.7 kg × an extrapolated coefficient — not a tested human dose. Charts disagree because the extrapolation method is arbitrary. No chart substitutes for a prescription from a licensed clinician.

Reverse-engineering the chart

Take 10 mcg/kg from rat studies, multiply by 90.7 kg, and you get ~907 mcg — yet most charts list 200–500 mcg for that body weight. The gap is an unexplained safety haircut applied by chart authors, which tells you these are editorial artifacts, not pharmacology.

Microscope objective close-up symbolizing the rat tendon studies from which all BPC-157 dosage chart numbers are scaled

Why body-weight scaling fails across species

Metabolic rate scales to roughly the 3/4 power of mass, not linearly. FDA guidance on human-equivalent dosing uses body-surface-area conversion for a reason. Applying linear mg/kg from rats to humans overestimates; applying forum haircuts underestimates unpredictably. Neither is evidence.

For the full evidence picture behind these charts, read the BPC-157 dosage research review; for administration questions, how to take BPC-157 and the oral vs injectable evidence; and when a clinician has actually prescribed a dose, the reconstitution calculator converts it to syringe units.

The honest version of a chart

  • Rodent studies: ~10 mcg/kg, injection or oral, days to weeks
  • Human trials defining a dose: none published
  • FDA status: not approved; compounding-risk listed
  • Correct row for every body weight: "ask a licensed clinician"

Frequently asked questions

How much BPC-157 should a 200-lb male take?
No tested human dose exists for any body weight. A "200-lb male" chart row is 90.7 kg multiplied by an extrapolated rodent coefficient with an arbitrary safety haircut applied — an editorial artifact, not pharmacology. The correct row for every body weight is "ask a licensed clinician."
Why do BPC-157 dosage charts disagree with each other?
Because every chart traces to the same rodent studies (~10 mcg/kg) converted with different arbitrary methods. When sources with no human data disagree, the disagreement is the finding.
How are animal doses converted to human doses?
Properly, through body-surface-area conversion per FDA guidance, since metabolism scales to roughly the 3/4 power of mass — not linear mg/kg multiplication. Even a correct conversion produces a starting estimate for trials, not a safe consumer dose.

Questions to ask a licensed clinician

  • How do you evaluate compounds with no human dose-finding data?
  • What would responsible monitoring look like if this were prescribed?

References

  1. Chang CH, Tsai WC, Lin MS, et al. (2011). The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration. Journal of Applied Physiology. SourcePreclinical
  2. US Food and Drug Administration (2023). Certain bulk drug substances for use in compounding that may present significant safety risks. FDA Human Drug Compounding. SourceAgency notice

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