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Tb 500

Frequently Asked Question

Is TB-500 the same as thymosin beta-4?

Not exactly. TB-500 is based on a fragment of the natural 43-amino-acid protein thymosin beta-4, and commercial 'TB-500' labeling is inconsistent - some products use the short actin-binding fragment, others the full protein.1 2

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Is TB-500 legal in the United States in 2026? → What was TB-500 evaluated for at the July 2026 meeting? →

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