TB-500

TB-500 is a lab-made peptide corresponding to the active, actin-binding region of thymosin beta-4, a natural repair peptide found throughout the body. It is supplied here as an analytical-grade reference material for laboratory research use only.

Thymosin beta-4 is the full 43-amino-acid natural peptide; TB-500 corresponds to the shorter active fragment that carries much of its actin-binding and repair-related activity. Research often discusses the two together when describing mechanism, though they are not identical molecules.

Not substantially. The great majority of the evidence is preclinical, from cell cultures and animal models. Thymosin beta-4's eye-surface applications have reached human testing, but systemic TB-500 use remains largely experimental, which is an important caveat.

Both are studied as tissue-repair tools and share themes such as promoting cell migration and new blood-vessel growth, so researchers frequently examine them together. That pairing is a research convention, not evidence of a combined effect in people.

TB-500 ships as a lyophilized powder and is reconstituted in the laboratory with bacteriostatic water. It should be kept cold and dark and protected from freeze-thaw cycles. It is intended for laboratory research use only, not for human or veterinary use.