BPC-157 + TB-500

Effects of BPC-157 and TB-500 on Achilles tendon healing in rats: A histopathological and biomechanical study.

Joint diseases and related surgery · 2026

Biçer O, Adanir O, Güleryüz Y, Balci EC, Dinçel YM, Yenigün MY, Aydin C, Bayrak BY

Rat Achilles-tendon model

The BPC-157 and TB-500 combination did not add benefit over the individual agents in an exploratory rat Achilles-tendon study. Among 32 rats divided into four groups, TB-500 had the clearest significant load-to-failure and histological findings, while the combination improved one histology score. Collagen I expression did not differ significantly between groups. The eight-animal groups and four-week follow-up limit the conclusion, and the reported TB-500 preparation still needs identity matching before comparison with a catalogue vial.

BPC-157 study

The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration.

Journal of applied physiology (Bethesda, Md. · 2011

Chang CH, Tsai WC, Lin MS, Hsu YH, Pang JH

Cellular and animal mechanistic research

BPC-157 increased tendon-fibroblast migration, spreading and survival under oxidative stress without directly increasing ordinary cell proliferation. FAK and paxillin phosphorylation rose, while total amounts of those proteins did not. The result connects cell movement with focal-adhesion signalling in rat-derived tendon cells.

TB-500 / full-length thymosin β4 study

Widely distributed residues in thymosin beta4 are critical for actin binding.

Biochemistry · 2008

Au JK, Olivares AO, Henn A, Cao W, Safer D, De La Cruz EM

Molecular and analytical characterisation

Actin binding depended on residues distributed across full-length thymosin β4, not only its central short motif. Several substitutions markedly weakened association or stability of the actin complex. This helps explain why the complete molecule and an isolated fragment are distinct biochemical tools.