Research comparison
BPC-157 vs. TB-500
BPC-157 is a 15-amino-acid fragment of a gastric juice protein; TB-500 at Peptidkauf is synthetic thymosin β4 with 43 amino acids. Both are studied in preclinical regeneration models through different mechanisms: thymosin β4 binds actin and affects cell migration.
| Property | BPC-157 | TB-500 (Thymosin β4) |
|---|---|---|
| Profile | Synthetic 15-amino-acid peptide from a gastric juice protein; one of the most studied peptides in preclinical regeneration models. | Synthetic thymosin β4 (43 amino acids), an actin-binding peptide studied in models of cell migration, angiogenesis and wound healing. |
| Sequence | GEPPPGKPADDAGLV | Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES |
| Length | 15 amino acids | 43 amino acids |
| Formula | C₆₂H₉₈N₁₆O₂₂ | C₂₁₂H₃₅₀N₅₆O₇₈S |
| Molar mass | 1,419.5 g/mol | 4,963 g/mol |
| CAS | 137525-51-0 | 77591-33-4 |
| Purity (current batch, HPLC) | 99.3 % | 98.84 % |
| Price per mg from | €1.25 | €1.25 |
In the range
For research and laboratory use only. Not for use in humans or animals. The data summarises literature and lab reports; it is not a recommendation for use.





