Amino Acid & Peptide · Compound

Thymosin Beta-4 (TB-500)

Provisional Moderate Scoreamino_acid

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Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Thymosin Beta-4 (TB-500) is a synthetic peptide derived from the naturally occurring 43-amino acid protein thymosin β4. It promotes tissue repair and wound healing by enhancing cell migration, angiogenesis, and reducing inflammatory cytokine expression.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryAmino Acid & Peptide

GroupCompound

Public Score StatusProvisional Moderate

Primary KeywordTB-500 benefits

Thymosin Beta-4 close-up macro showing natural texture and detail — rich in tissue repair, angiogenic, anti-inflammatory

Thymosin Beta-4 (TB-500) — botanical close-up

Reported Benefits (Provisional)

Accelerates wound healing and tissue repair by promoting cell migration and angiogenesis, leading to faster recovery from injuries. - Reduces inflammation by modulating cytokine activity, which helps decrease pain and swelling. - Promotes recovery from injuries by supporting muscle and tendon regeneration. - Enhances blood vessel formation, improving nutrient delivery to damaged tissues. - Supports immune function by regulating white blood cell activity, aiding in defense against infection. - May reduce scar tissue formation by balancing collagen deposition during healing. - Improves flexibility and mobility by supporting connective tissue health. - Protects against oxidative stress by boosting antioxidant enzyme activity, preserving cellular integrity.

Origin & History

Natural habitat

Thymosin Beta-4 (TB-500) is a synthetic version of a naturally occurring peptide involved in tissue repair and regeneration. It is produced through peptide synthesis, ensuring high purity for therapeutic use.

“Thymosin Beta-4 was identified in the 1960s and has been studied for its regenerative properties, particularly in sports medicine and injury recovery.”Traditional Medicine

Research Narrative (Provisional)

Animal studies and preliminary human research highlight TB-500's role in tissue repair and inflammation reduction. More clinical trials are needed to establish its efficacy in humans.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Composed of 43 amino acids. - Contains no calories, fats, or carbohydrates. - Available in injectable form for targeted delivery.

Reported Mechanism (Provisional)

Mechanism of Action

TB-500 binds to actin proteins and promotes actin polymerization, facilitating cell migration and tissue remodeling. It upregulates VEGF (vascular endothelial growth factor) expression to stimulate angiogenesis and new blood vessel formation. The peptide also modulates inflammatory pathways by reducing pro-inflammatory cytokines like TNF-α and IL-1β while promoting anti-inflammatory mediators.

Clinical Narrative (Provisional)

Most research on TB-500 consists of preclinical animal studies rather than large-scale human trials. Animal studies have demonstrated accelerated wound healing, improved muscle regeneration, and reduced inflammation with dosages typically ranging from 2-10mg administered twice weekly. Limited human case reports suggest potential benefits for injury recovery, but controlled clinical trials in humans are lacking. The current evidence base is promising but insufficient to establish definitive therapeutic protocols or safety profiles in humans.

Also Known As

Thymosin β4TB-500Tβ4TMSB4XThymosin beta-4 acetateActin-sequestering peptideRegenerative peptide

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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