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Interactive tool
Compare any two peptides
Pick two compounds and see their class, cluster, length, function, and sequence side by side — educational, not medical advice.
Comparisons are one of the most common ways people explore peptide science. Select any two of the 200+ profiles to line them up.
BPC-157 vs TB-500
BPC-157
The most-searched research peptide has hundreds of rodent papers, largely from one group, and — as of 2026 — its first registered human efficacy trials.
TB-500
Seven acetylated residues of a 43-residue protein: TB-500's biology is inferred from thymosin β4, and the fragment itself has no published human efficacy data.
Class
Research pentadecapeptide (gastric-juice-derived sequence)
Class
Synthetic thymosin β4 fragment (research peptide)
Cluster
Repair & recovery
Cluster
Repair & recovery
Length
15 aa
Length
7 aa
Function
Studied in rodent models of tendon, muscle, ligament, gut and skin injury; proposed angiogenic and nitric-oxide-related mechanisms
Function
N-acetylated 7-residue fragment of thymosin β4's actin-binding motif; in-vitro research, with rodent tendon findings for vendor-labelled material of uncharacterized sequence
Context
Not approved in any jurisdiction; FDA barred it from pharmacy compounding in September 2023; first small human efficacy trials registered 2025–2026
Context
Veterinary-origin research chemical; no product-specific authorization record verified in this profile. One registered human trial (phase 1/2, recruiting 2026) does not establish approval
Sequence
Sequence