TB-500 results: what to expect and when

A short piece of thymosin beta-4 with no proven repair benefit in humans.

Also called: TB500, Ac-LKKTETQ, Thymosin beta-4 fragment 17–23.

Healing and repair peptides · N-acetylated seven-amino-acid thymosin beta-4 fragment.

Three dental patients received several drugs with no comparison group or confirmed peptide identity. This cannot establish TB-500's benefit or safety.

Key studies

  • Dental nerve cases: identity uncertain: A named-product case series cannot establish fragment identity, benefit or a studied subcutaneous dose. (source)
  • Fragment metabolism and cell wound assay: Activity of a breakdown product does not establish benefit from injecting TB-500. (source)
  • Horse dosing and detection: This was a doping-detection study, not evidence of human healing or safety. (source)
  • Mouse wounds: related unacetylated fragment: This supports a related fragment mechanism, not a TB-500 human protocol. (source)
  • Rat Achilles repair: no added stack benefit: A rat combination study cannot establish a human recovery stack. (source)
  • Engineered fragment hydrogel for corneal injury: An engineered local hydrogel is not evidence for injected TB-500. (source)

Related to TB-500

Sources

Sources checked: 2026-10-18.

Information only, not medical advice. Peptifacts does not sell anything and does not link to sellers.