Recovery & RepairGrade B
TB-500
Also known as Thymosin Beta-4 fragment
A synthetic fragment mimicking thymosin beta-4, used for tissue repair, flexibility, and inflammation control in research settings.
- Regulatory status
- Not approved
- Half-life
- ~2–3 hours
- Route
- Subcutaneous or intramuscular
- Evidence
- Limited human trials or approved outside the US
Mechanism of action
Binds actin to promote cell migration, angiogenesis, and downregulation of inflammatory cytokines.
Studied and reported uses
- Muscle and tendon repair
- Wound healing
- Reduced fibrosis
Dosing information
Loading2–2.5 mg twice weekly for 4–6 weeks
Maintenance2 mg every 1–2 weeks
Ranges are reported from literature and clinical labeling for reference only. They are not a dosing recommendation.
Side effects
- Lethargy after dosing
- Head rush
- Injection-site reaction
Research evidence
Preclinical
Accelerated dermal and cardiac repair in animal models.