TB-500
Also known as: Thymosin Beta-4 fragment
TB-500 is a popular peptide topic online, but it is not FDA-approved for human use. Use this guide to understand the claims, the evidence gaps, and the safety questions to ask before considering anything further.
Mostly animal research. Some use in equine veterinary medicine. Limited human data.
What to know before you go deeper
Promotes actin polymerization, which is involved in cell movement, tissue repair, and inflammation regulation. Thought to accelerate healing of injured tissues and reduce inflammation.
Approval status: Not FDA-approved. This is not an FDA-approved human treatment.
Injury recovery, Tendon and muscle healing, Inflammation reduction.
What evidence applies to my situation, what monitoring is needed, and what safer first steps should I try?
Why People Ask About TB-500
- Injury recovery
- Tendon and muscle healing
- Inflammation reduction
Questions to Bring Up
No FDA-approved human therapeutic use. Clinical discussions should focus on regulatory status, evidence gaps, monitoring, and whether conventional care is more appropriate.
Dosing, sourcing, and suitability questions belong with a licensed clinician who can review your history, labs, medications, and goals.
Known Side Effects
- Generally well-tolerated in animal studies
- Human data limited
Important Safety Notes
⚠ Research use only
Often discussed alongside BPC-157 in recovery-focused wellness content
Sometimes marketed as "Thymosin Beta-4" but TB-500 is a fragment, not the full peptide
What Is Approved?
Research chemical — a synthetic fragment of Thymosin Beta-4. Not FDA-approved for human use.
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