Thymosin Beta-4
Reviewed by Fat Man in the Arena · Updated March 2026
Key Takeaway
Thymosin Beta-4 is the full-length naturally occurring protein from which TB-500 is derived. It plays a central role in tissue repair, cell migration, and immune modulation.
How it works
Promotes actin polymerization, cell migration, and angiogenesis. Modulates inflammatory response and supports tissue regeneration.
Benefits
- Full-spectrum healing activity
- Cardiac tissue protection
- Wound healing
- Anti-inflammatory
Side effects
- Similar to TB-500
- Limited human data
Dosing protocol
Typical Dose
750 mcg to 2 mg twice weekly
Frequency
Twice weekly
Cycle Length
4-8 weeks
Less commonly used than TB-500 due to cost.
Goals
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Medical Disclaimer: This content is for informational and educational purposes only. It is not intended as medical advice or a substitute for professional medical consultation, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any peptide protocol.