BPC-157 vs TB-500
The two most-discussed injury-recovery peptides — often stacked, frequently compared. Here's a neutral, sourced side-by-side — no hype, every claim links to its evidence.
BPC-157
ResearchAlso: Body Protection Compound, PL 14736
BPC-157 is a man-made copy of a tiny piece of protein found in the juice of your stomach. The letters stand for Body Protection Compound, and 157 is the number of the piece scientists found.
TB-500
ResearchAlso: TB500, TB-4 + BPC-157 (Popular Healing Stack)
TB-500 is a man-made copy of a small piece of a natural protein called Thymosin Beta-4. Your body already makes this protein, and it is found in blood cells and almost every cell.
At a Glance
| BPC-157 | TB-500 | |
|---|---|---|
| Research status | Preclinical | Preclinical |
| Highest-tier evidence | Peer-reviewed study | Peer-reviewed study |
| Research citations | 50 | 10 |
| Dosing routes | SubQ | — |
| Receptor targets | Growth Hormone Receptor, VEGF | G-actin, VEGF, bFGF |
| Half-life | No established half-life in humans; preclinical data only. | — |
| Known side effects | 28 | 0 |
Research Areas
Top preclinical research areas — cited studies for each.
BPC-157
- Tendon/ligament repair
- Angiogenesis
- Anti-inflammatory
TB-500
- Wound/tissue repair
- Angiogenesis
- Anti-inflammatory
How People Use It
Reported routines — research only, not medical advice.
BPC-157
- SubQ — 5 mg BPC-157 + 5 mL BAC water
- SubQ — Daily
- SubQ — BPC-157 250–500 mcg/day SC + TB-500 2–5 mg twice weekly for 4–6 week loading, then TB-500 2 mg weekly for 4–8 weeks
TB-500
Not yet documented for TB-500 — being compiled.
The Evidence
Key studies — click through to verify each on PubMed.
BPC-157
50 sourced studies
- Source
The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration.
In vitro2010 Key study 85/100Rated 85/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Gastric pentadecapeptide body protection compound BPC 157 and its role in accelerating musculoskeletal soft tissue healing.
Review2019 80/100Rated 80/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Pentadecapeptide BPC 157 enhances the growth hormone receptor expression in tendon fibroblasts
In vitro2018 84/100Rated 84/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Regeneration or Risk? A Narrative Review of BPC-157 for Musculoskeletal Healing
Review2025 76/100Rated 76/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology →
TB-500
10 sourced studies
- Source
Thymosin beta4 accelerates wound healing.
AnimalStudy1999 Key study 86/100Rated 86/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Utilizing Developmentally Essential Secreted Peptides Such as Thymosin Beta-4 to Remind the Adult Organs of Their Embryonic State-New Directions in Anti-Aging Regenerative Therapies
Review2021 78/100Rated 78/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
PubChem - Compound - Tb500
95/100Rated 95/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology → - Source
Synthesis and characterization of the N-terminal acetylated 17-23 fragment of thymosin beta 4 identified in TB-500, a product suspected to possess doping potential.
2012 95/100Rated 95/100Source typePeer-reviewed studyIndependent sourcesstill being verifiedEvery claim links to the page it came from, and stronger sources rate higher. Full methodology →
Decision Guide
How to Choose
Neither is a “winner” — they suit different goals. Compare the documented benefits and evidence above against what you’re actually trying to achieve, note the research status (approved vs research-stage), and read each full guide before deciding. Many people also stack peptides rather than pick one.
Source BPC-157
Shop BPC-157Source TB-500