Tissue repair / recovery
TB-500
Thymosin Beta-4 (fragment)
Thin — animal/veterinary, no human trials
Based on expert consensus from publicly available videos plus public FDA/regulatory status — not medical advice. Peptides are prescription territory; consult a physician before using anything here.
The Verdict
Usually stacked with BPC-157 for recovery, but the human evidence is even thinner — largely animal and veterinary. Huberman is the only panel voice that covers it in depth.
The Evidence
FDA / Legal Status
Not FDA-approved
Human Evidence
Repair-focused (stem-cell proliferation, matrix stabilization); studied mostly in animal/veterinary contexts
Sport / Doping
Widely banned in sport
Safety Flags
- No human safety data of trial quality
- Gray-market contamination risk; banned in sport
Who Covers It
Other experts in the panel had no substantive coverage of this peptide — we don't guess their position.
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