BPC-157
BPC157, Body Protection Compound-157, PL 14736, BPC-157 arginate
Forms: Injectable powder and oral capsules (including 'arginate' salt forms).
A synthetic 15-amino-acid peptide based on a protein from gastric juice, sold as a 'healing' peptide. Almost all evidence comes from rats; human data are limited to a few very small pilot studies.
Legal status: Not approved as a medicine anywhere; sold as a 'research chemical', with no legal basis for US pharmacy compounding. Banned in sport at all times (WADA S0).
What it gives
What people use it for and what the sources report. Strength is a general category from the literature: mild, clear or strong.
Purpose
Used to speed healing of tendon, ligament, muscle and joint injuries and for gut problems. Rat studies show faster repair, but no controlled human trial has confirmed any benefit. Not approved as a medicine anywhere.
What people seek and what studies show
People hope for a faster return after tears and strains, less joint pain and gut healing. In rats it improved the structure and strength of healing tendons, ligaments, muscle and bone, with more new blood vessels and less inflammation. Human data are three tiny reports with no control group (knee pain, interstitial cystitis, an infusion in two adults), so a benefit in people is unproven.
Effects
Evidence: Animal data only — effects in people are unproven
Sought effects by goal (as reported)
Possible side effects
Possible does not mean certain: whether they appear depends on dose, duration, individual response and monitoring. Below — what to watch for and how to notice it early.
4 possible side effects
level · how often it is reportedWhat the levels mean
Level: general category from the literature, not your personal risk
How often
- common
- reported often
- possible
- reported in some people
- rare
- reported occasionally
How to lower the risks
General ways to lower the chance of each side effect. No measure removes a risk completely.
Products obtained without a prescription are often fake, mislabeled or non-sterile, and there is no way to check at home. For legal supplements, look for third-party testing (Informed Sport, NSF).
What is unknown cannot be lowered, only avoided; tell your doctor what you have taken.
No check-up or blood test lowers this risk; avoid with any personal or family history of cancer.
Low-level side effects
Check-ups and blood tests
Which tests and check-ups to do and when. This is a guide — agree the exact schedule with your doctor.
Which doctors can help
Get medical help at once if
- A new lump (including in the neck), trouble swallowing or persistent hoarseness, unexplained weight loss, or blood in stool or urine — see a doctor promptly.
In an emergency, call your local emergency number.
Myth & fact
“BPC-157 is a proven healing peptide with no side effects.”
Healing is shown in rats, not in controlled human trials; 'no side effects' only means nobody has properly studied it in people.
Combinations
No specific combination notes for this substance yet. The stack check still adds up side effects that several substances share.
Sources
Possible side effects by body system, combinations, how to lower the risks and which tests to do — free.
Open the stack check