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BPC-157

Healing & recovery

Also known as: Body Protection Compound 157, Bepecin, PL 14736, Pentadecapeptide BPC 157

A synthetic peptide of 15 amino acids, studied mostly in animals for healing tendon, ligament, muscle, and gut tissue.

Safety:Human evidence is thin, with no completed randomized trials. Because it encourages new blood vessel growth, it is usually avoided by anyone with active or recent cancer.

2.What it is / mechanism

BPC-157 is a synthetic peptide made of 15 amino acids, based on a protective protein found in human gastric juice. In animal studies it appears to speed up tissue repair by encouraging new blood vessel growth (), boosting growth factor and signaling, and acting on the nitric oxide system, with broad protective effects on cells. One striking thing about it is the mismatch between how fast it clears and how long it works. The peptide leaves the bloodstream within about 15 to 30 minutes, yet its tissue effects can last for weeks. That suggests the benefit is driven at the tissue level rather than by holding a steady level in the blood.s1, s2

3.What the evidence supports

  • Animal data onlySpeeds healing of tendon, ligament, muscle, and bone injuries.s1, s2

    Consistent across many rodent studies. Not yet shown in controlled human trials.

  • Animal data onlyProtects and heals gut tissue, such as ulcers and colitis.s2

    A large body of rodent work from the original research group. Independent human confirmation is missing.

  • Limited human dataSmall uncontrolled human reports describe benefit, for example in interstitial cystitis and knee pain.s2

    Fewer than about 30 people in total across published human reports, with no placebo groups or randomized trials.

  • Anecdotal onlyBroad body wide benefits are often claimed, such as neuroprotection or better mood.s2

    Based on animal mechanisms and community reports, not human outcome data.

4.Dosing

Anecdotal only
Route(s)subcutaneous, often near the injury site, intramuscular, oral (stable in the stomach, though how much reaches the body is unclear)
Typical range200 to 500 mcg per day, most often around 250 to 500 mcg. Community protocols run up to about 1,000 mcg per day.
FrequencyOnce or twice daily
Half-life4 hours
Cycle guidanceAbout 4 to 8 weeks for an acute injury, or 8 to 12 weeks for chronic problems.
NotesNo human dose finding studies exist, so these ranges come from animal scaling and community practice. Because it clears the blood so quickly, with a of roughly 15 to 30 minutes in animal studies, BPC-157 does not build up in the blood. Daily or twice daily dosing is about keeping steady exposure at the tissue, not reaching a blood plateau. Many people inject close to the target area.
s1, s2

A dose is only as good as the draw. Which syringe you need depends on how much water you mixed with, and the most common gear mistakes (a 0.5 mL syringe that cannot hold the dose, a mixing barrel that ships without needles, sizing up a needle because of body fat) are all avoidable. See what to buy: syringes, needles, and the rest of the kit.

5.Reconstitution

Vial sizes5 mg, 10 mg
DiluentBacteriostatic water (0.9% benzyl alcohol) for multi dose vials, or sterile water for single use
ConcentrationExample: a 5 mg vial plus 2 mL of water gives 2.5 mg/mL, which is 25 mcg per unit on a U-100 syringe. A 10 mg vial plus 2 mL gives 5 mg/mL. Adjust the water volume to land on an easy unit count.
NotesBPC-157 usually ships as 5 mg or 10 mg freeze dried vials.

Reconstitution calculator

Pick your vial size and how much water you add to see the draw volume and syringe units for a dose. Open the full calculator →

Inputs

Which do you know?

You want a set amount of compound. We show how many units to draw on the syringe.

Reminder: 1 mg = 1,000 mcg

mg

Total amount stated on the vial, e.g. 5 mg.

mL

How much diluent you draw into the vial.

Check this before you read the result. 1 mg = 1,000 mcg, so picking the wrong one is a 1,000x error, not a rounding error.

Result

Draw to

10 units

= 0.1 mL on a U-100 syringe

Easy draw: this dose comes out to a clean 10 units.

Aim for a dose that lands on an even number of units, like 10, 20, or 50. It is easier to draw accurately and to remember, and it keeps you off awkward repeating decimals.

Concentration
2,500 mcg/mL
Per unit
25 mcg / unit
Doses per vial
20

Your settings live in the address bar, so a pasted link opens this calculator exactly as you left it.

Educational estimate only. Not medical or dosing advice. Verify every calculation independently before use.

General reconstitution technique →

6.Storage & stability

Lyophilized (dry)

TempFreeze for long term storage, or 2 to 8 short term
Shelf lifeMany months to about 2 years when frozen
NotesKeep dry and out of light until you mix it.

Reconstituted

Temp2 to 8 (refrigerated)
Shelf lifeAbout 2 to 4 weeks
NotesDo not freeze after mixing. Discard if cloudy or discolored.

General storage & stability guide →

7.Reported side effects

  • WarningUnknown long term risks, since there is no long term human safety datas2, s3Rodent studies report little toxicity, but no long term human safety trials have been completed.
  • CautionInjection site soreness, redness, or bruising(common)s2The most commonly reported effect. Usually mild and local.
  • CautionHeadache or light headedness(uncommon)s2
  • CautionNausea or digestive upset(uncommon)s2
  • InfoFatigue(uncommon)s2

8.Interactions & stacking risks

  • InfoTB-500 (a thymosin beta 4 fragment)s2

    Often stacked in community protocols for recovery. No human data supports the combination.

  • SeriousActive cancer or a known tumors2, s4

    BPC-157 promotes new blood vessel growth, which could in theory feed a tumor. Avoid it alongside an active or recent cancer.

9.Contraindications / who should avoid

  • SeriousActive or recent cancer, or a strong family history

    New blood vessel growth (angiogenesis) could in theory feed an existing or hidden tumor. This is a concern based on mechanism and animal data, not a proven human outcome, but clinicians generally advise avoiding it.

  • SeriousPregnancy or breastfeeding

    No safety data in pregnancy or breastfeeding.

10.COA & purity notes

Common adulterantsunderdosed or mislabeled material, where the real content is below the label, BPC-157 and TB-500 blends sold as pure BPC-157, bacterial endotoxin or contaminants from non sterile production
MislabelingResearch suggests many reported BPC-157 side effects actually trace back to impurities, wrong dosing, or hidden blends rather than the peptide itself, which is why a third party COA is worth checking.
NotesSold as a research chemical. It is not an FDA approved drug and has no USP monograph, so manufacturing quality is unregulated and varies.

How to read a COA →

11.Sources

  1. [s1]Frontiers in Pharmacology (2022). Pharmacokinetics, distribution, metabolism, and excretion of body protective compound 157, a potential drug for treating various wounds, in rats and dogs. preclinical animal link
  2. [s2]Pharmaceuticals (MDPI) (2025). Multifunctionality and Possible Medical Application of the BPC 157 Peptide, Literature and Patent Review. review link
  3. [s3]Examine.com (2025). BPC-157 benefits, dosage, and side effects (evidence overview). review link
  4. [s4]U.S. Food & Drug Administration (2026). Pharmacy Compounding Advisory Committee, 503A bulk drug substances review (includes BPC-157). regulatory link

Last reviewed 2026-07-07 · status: reviewed