BPC-157 vs TB-500
The two most-discussed recovery peptides — one acts locally on the gut–brain axis and growth factors, the other systemically on actin and cell migration.
In short: BPC-157 and TB-500 are frequently studied together because their proposed repair mechanisms are complementary rather than overlapping.
Side-by-side comparison
| BPC-157 | TB-500 | |
|---|---|---|
| Class / subtitle | Pentadecapeptide studied for tissue repair | Synthetic Thymosin Beta-4 studied for repair & cell migration |
| Research status | Preclinical | Preclinical |
| Categories | Recovery & Healing | Recovery & Healing |
| Primary targets | VEGFR2, Nitric oxide system, Growth factor signalling | G-actin, Cell migration machinery |
| Half-life | Short — rapidly cleared from plasma (minutes); effects reported to outlast measurable levels | Estimated a few hours; the short active fragment is cleared faster |
| Sequence | Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val | Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES (Tβ4); active region LKKTETQ |
| Molecular formula | C62H98N16O22 | C212H350N56O78S (Tβ4) |
| Molecular weight | 1419.5 g/mol | ≈4963 g/mol (full Thymosin Beta-4) |
| CAS number | 137525-51-0 | 77591-33-4 |
| Routes (research) | subcutaneous, intramuscular, oral | subcutaneous, intramuscular |
BPC-157 is a synthetic 15-amino-acid peptide derived from a protein found in gastric juice, studied extensively in animal models for accelerated healing of tendon, ligament, muscle, and gut tissue.
Full BPC-157 profileTB-500 is a synthetic version of Thymosin Beta-4 (or its active fragment), a naturally occurring peptide studied for its role in actin regulation, cell migration, and tissue repair.
Full TB-500 profileFAQ
What is the main difference between BPC-157 and TB-500?
BPC-157 and TB-500 are frequently studied together because their proposed repair mechanisms are complementary rather than overlapping.
What is the half-life of BPC-157 compared to TB-500?
BPC-157: Short — rapidly cleared from plasma (minutes); effects reported to outlast measurable levels. TB-500: Estimated a few hours; the short active fragment is cleared faster.
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