A synthetic fragment related to Thymosin Beta-4, a naturally occurring actin-regulating peptide. Studied in preclinical models for cell migration, wound healing, and flexibility.
Mechanism under study
Thymosin Beta-4 sequesters G-actin and promotes cell migration and blood-vessel formation; the TB-500 fragment is studied for similar pro-migratory and reparative effects in injured tissue.
Research-reported dosing
Research-community references commonly cite ~2–2.5 mg once or twice weekly during an initial period, tapering thereafter. Not established in humans.
Based on a standard 10 mg vial: with 2 mL bacteriostatic water = 5,000 mcg/mL (5 mg/mL); 1 unit ≈ 50 mcg.
A 2 mg dose ≈ 40 units (50 mcg per unit).
Open this mix in the calculator →Source research-grade TB-500 ↗Dosing figures describe how this compound appears in the research literature and research-community references. They are not a recommendation for human use.
TB-500 comparisons
TB-500 FAQ
What is TB-500?
A synthetic fragment related to Thymosin Beta-4, a naturally occurring actin-regulating peptide. Studied in preclinical models for cell migration, wound healing, and flexibility.
What is the half-life of TB-500?
Reported longer-acting than many peptides; research references dosing 1–2× weekly.
What is the research-reported dosing for TB-500?
Research-community references commonly cite ~2–2.5 mg once or twice weekly during an initial period, tapering thereafter. Not established in humans.
How is TB-500 reconstituted?
Based on a standard 10 mg vial: with 2 mL bacteriostatic water = 5,000 mcg/mL (5 mg/mL); 1 unit ≈ 50 mcg.
Is TB-500 FDA-approved?
No — TB-500 is not FDA-approved and is sold for laboratory research use only.
References
Guides featuring TB-500
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