Library / TB-500
Mostly lab & animal studies
TB-500
Synthetic peptide fragment · Healing & repair · Thymosin beta-4 fragment
What it is
Based on the active region of thymosin beta-4, a natural protein involved in cell movement and wound repair.
What research covers
Research on thymosin beta-4 is mainly in animals and the lab, looking at wound healing and recovery after heart and muscle injury. Human data on the TB-500 fragment itself is scarce.
Reported side effects
- Injection-site discomfort or bruising
- Light-headedness after injection (anecdotal)
- Unknown long-term effects
Not suitable for, or talk to a doctor first
- Current or past cancer (theoretical concern from its effects on cell growth and blood vessels)
- Pregnancy or breastfeeding
Good to know
- Purity of research-grade products is not regulated.
Legal status
| Australia | Not an approved medicine in Australia. Peptides like this are generally prescription-only (Schedule 4) and need a prescription to import. Check current rules with the TGA. |
|---|---|
| United States | Not FDA-approved. |
| Sport | Prohibited by the World Anti-Doping Agency (WADA) at all times. |
Rules change. Check with the TGA (Australia), your local regulator, or WADA for sport.
Key references
- Bock-Marquette et al. Thymosin β4 activates integrin-linked kinase and promotes cardiac cell migration, survival and cardiac repair. Nature, 2004.
General information, not advice. Talk to a qualified healthcare professional before starting, changing or stopping anything.