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Peptide library
Not FDA-approvedBones & muscles

TB-500

Also called thymosin beta-4 fragment

Evidence
Limited research
Class
Synthetic Tβ4 fragment

TB-500 belongs to the Synthetic Tβ4 fragment class. This library groups it under bones & muscles. Its source category is Not FDA-approved.

Research libraryPeppy Care
Source snapshot
References10 linked sources

At a glance

TB-500 research overview
Compound classSynthetic Tβ4 fragment
Body systemBones & muscles
Use or research focusSoft-tissue injury, recovery
Regulatory statusNot FDA-approved; PCAC voted favorably (Jul 2026) for 503A compounding — final FDA rule pending
Source evidence ratingLimited research

How does TB-500 work?

Upregulates actin; promotes cell migration, angiogenesis, repair.

The source catalog maps this mechanism to Joints / Connective tissue, Muscle. A biological mechanism describes how a compound interacts with the body; it does not by itself prove a clinical benefit.

What does the evidence tell us?

The source catalog rates the evidence as limited. Laboratory and animal findings cannot establish benefits or safety in people. Small or early studies may raise useful research questions without supporting routine clinical use.

Use the Citations tab to examine the underlying sources. Look for human studies, a relevant comparison group, meaningful outcomes, and adequate follow-up. An ingredient, approved drug, and compounded preparation may have different evidence.

Safety and considerations

For an unapproved use or compound, safety and effectiveness may be uncertain. Products sold for research are not a substitute for prescribed care. Do not infer a human dose, injection protocol, or treatment recommendation from preclinical research.

This library is educational and does not provide dosing or treatment instructions. A listing here does not indicate that Peppy offers the compound.

Common questions

What is TB-500?

TB-500 belongs to the Synthetic Tβ4 fragment class. This library groups it under bones & muscles. Its source category is Not FDA-approved. Its recorded use or research focus is: Soft-tissue injury, recovery.

Is TB-500 FDA-approved?

The catalog records: Not FDA-approved; PCAC voted favorably (Jul 2026) for 503A compounding — final FDA rule pending. Check the current product-specific regulatory information in the source links; a source category does not establish approval for every use or formulation.

How strong is the research?

The source catalog rates the evidence as limited. Laboratory and animal findings cannot establish benefits or safety in people. Small or early studies may raise useful research questions without supporting routine clinical use.

Where can I read the research?

The Citations tab contains 10 reference links from the source dataset. The original research guide provides additional context. These links are a starting point for reading the evidence.

More for bones & muscles

Factual catalog fields and citation links are adapted from Superpower’s TB-500 guide and the public dataset linked in the reference post. Peppy’s explanations are educational; this page does not represent an independent clinical review of every linked study.