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Thymosin β4 fragment
TB-500
A peptide commonly described as a fragment of thymosin beta-4, studied in relation to cellular movement and tissue-repair pathways.
How it works
Full-length thymosin beta-4 binds actin, a protein involved in cell structure and movement. TB-500 commonly refers to a shorter fragment; findings for the full-length protein cannot automatically be applied to that fragment.
Research context
Published evidence specific to the TB-500 fragment is limited. Studies of thymosin beta-4 are not proof of the safety or effectiveness of TB-500, which is not an approved medicine.