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Peptides / TB-500 / United Kingdom

TB-500 in the United Kingdom

Legal status, what it is, and the listed suppliers in the United Kingdom that list it.

Legal status in the United Kingdom

Not an approved medicine.

As understood at 2026-09-22. Verify with the MHRA.

What TB-500 is

TB-500 is a synthetic peptide corresponding to a fragment of thymosin beta-4, a naturally occurring 43-amino-acid protein involved in regulating actin, a building block of cell structure. The published research below is on the full protein, not the fragment that suppliers sell under the name TB-500.

Full TB-500 page: targets and research →

Listed suppliers in the United Kingdom

10 of the 10 suppliers we list in the United Kingdom list TB-500. Listed, not endorsed: each row is the supplier’s own stated terms.

Bluewell Peptides United Kingdom All Bluewell products are supplied strictly for laboratory research use only. They are not intended for human consumption, medical use, therapeutic use, diagnostic use, or veterinary use. Imperial Peptides UK United Kingdom In Vitro Research Use Only. Not for human or veterinary consumption. Midshire Labs United Kingdom All Midshire Labs products are sold strictly for research purposes only. They are not intended for human consumption, medical, veterinary, or diagnostic use. Peptides Lab UK United Kingdom Strictly intended for laboratory research use only. Not for human or veterinary consumption. PeptidesUK United Kingdom For research use only. Precision Research UK United Kingdom For laboratory and research use only. Not for human or veterinary consumption, diagnostic, or therapeutic use. Pure Peptides UK United Kingdom All products are for research use only. Research Peptide United Kingdom Supplied strictly for research and laboratory use only and not for human or veterinary consumption. UK Peptides United Kingdom All products are sold exclusively for in-vitro research. They are not for human or veterinary use. XL Peptides United Kingdom All products are exclusively sold for research purposes. They are not intended for human use, therapeutic, diagnostic, or clinical application.

Clinical Research

Thymosin beta4 activates integrin-linked kinase and promotes cardiac cell migration, survival and cardiac repair
Bock-Marquette I, Saxena A, White MD, et al. (2004). Nature. animal embryonic and postnatal cardiomyocytes in culture, then mice after coronary artery ligation
Thymosin beta 4 and the eye: the journey from bench to bedside
Sosne G (2018). Expert Opinion on Biological Therapy. review n/a (narrative review by an investigator in the field)
Thymosin β4: actin-sequestering protein moonlights to repair injured tissues
Goldstein AL, Hannappel E, Kleinman HK (2005). Trends in Molecular Medicine. review n/a (review)