Evidence-graded · Source-cited Peer-reviewer panel · 6 clinicians
PeptideVox

TB 500

TB 500 is a recurring topic in our peptide coverage. This hub collects every article tagged TB 500, newest first, each evidence-graded and tied to real, verifiable sources.

Peptide Encyclopedia

Thymosin Beta-4: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on Thymosin Beta-4 (Tβ4) — the actin-sequestering repair peptide with a real, decades-long human-trial record in ocular, dermal and cardiac repair. Grade B human evidence, no FDA-approved product, and an unsettled 2026 legal status.

Peptide Encyclopedia

TB-500: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on TB-500 — the synthetic thymosin β4 fragment (Ac-LKKTETQ) marketed for tendon, muscle and tissue repair. Strong preclinical biology, no human efficacy RCT of the fragment, and an unsettled 2026 legal status.

Frequently asked

What is TB 500?

TB 500 is a topic our editors cover across the site. This hub aggregates the related, evidence-graded guidance.

How often is the TB 500 hub updated?

This hub updates automatically whenever a new article is tagged TB 500, so the latest coverage appears first.

Are TB 500 claims sourced?

Yes. Every article here grades its efficacy claims A-D and cites real, verifiable studies, regulatory documents or trial registries.

Medical Disclaimer · Read in full

PeptideVox is an evidence reference, not medical advice. Nothing here authorizes you to acquire, possess, or self-administer any compound.

01 · Not FDA-approved

The majority of compounds documented here are not approved by the FDA for human use. Approved drugs (e.g. semaglutide, tirzepatide) are noted explicitly and require a licensed prescriber.

02 · Research chemicals

Many peptides — including BPC-157 and GHK-Cu in injectable form — are sold strictly "for research use only — not for human consumption." Purity, identity, and dosing of such products are not regulated or guaranteed.

03 · WADA-prohibited

Several compounds are banned in competitive sport under the WADA Prohibited List. Athletes risk sanction regardless of intent or formulation.

04 · Consult a clinician

Always consult a qualified, licensed healthcare professional before considering any compound. Individual risk depends on your full medical context.

This content is for informational and educational purposes only · No physician–patient relationship is created · Evidence grades reflect published data as of the stated revision and may change.