Often searched alongside BPC-157 as a 'healing stack' research topic.
Also known as: Thymosin Beta-4 fragment · TB500 · Thymosin β4 fragment
Part of the Repair & recovery peptides cluster
Overview
TB-500 refers to a synthetic peptide fragment associated with thymosin beta-4 research, studied for effects on cell migration and tissue remodeling in experimental models. It is not an approved medicine.
Source & context
Biological / chemical source: Synthetic fragment related to thymosin β4 research
Primary research or clinical context: Research compound (not an approved drug)
Relationship to thymosin β4
Full-length thymosin β4 is a 43-residue actin-sequestering peptide. TB-500 is commonly discussed as a shorter research fragment (often the LKKTETQ region) rather than the full endogenous protein.
Research framing
Literature and secondary sources discuss wound-healing and inflammation models. Quality of commercial research materials varies; analytical verification (identity, purity) is a recurring theme in scientific sourcing discussions.
Naming confusion to watch
Vendors may label materials as TB-500, thymosin beta-4, or TB4 interchangeably. Those are not automatically the same analyte. Always match the COA sequence/mass to what the experiment requires.
Compared with BPC-157
The pair is the internet’s default “repair stack,” but the molecules come from different research traditions. Read the BPC-157 vs TB-500 guide for a structured comparison.
Sequence
One-letter sequence commonly cited for TB-500 (educational; isoforms and modifications may differ):
FAQ about TB-500
What is TB-500?+
TB-500 refers to a synthetic peptide fragment associated with thymosin beta-4 research, studied for effects on cell migration and tissue remodeling in experimental models. It is not an approved medicine.
Is TB-500 an approved medicine?+
TB-500 is discussed here as a research / educational topic. Research compound (not an approved drug). This is not medical advice.
What is the typical length of TB-500?+
TB-500 is commonly described as approximately 7 amino acids (Research peptide).