Peptide Library / Recovery & Repair
TB-500
Also known as: Thymosin Beta-4 fragment
BPC-157's usual partner — studied for flexibility, tissue repair, and reducing inflammation across the whole body rather than one site.
| Typical research dose | 2–2.5 mg (loading), then 2–2.5 mg every 1–2 weeks (maintenance) |
|---|---|
| Frequency | 2× weekly during loading (4–6 weeks) |
| Route | Subcutaneous injection |
| Cycle length | 4–6 week load, then maintenance or off |
Figures reflect protocols commonly reported in the research community — not a prescription or a recommendation.
What it is
TB-500 is the synthetic version of the active region of thymosin beta-4, a protein present in nearly every human and animal cell, concentrated in wound fluid. Its role in the body is to regulate actin — the protein that lets cells move, which is central to how tissue rebuilds itself.
What the research looks at
- Systemic tissue repair — unlike site-targeted compounds, TB-500 is studied for whole-body effect: muscle, tendon, ligament, and skin models.
- Flexibility and inflammation — animal work suggests reduced scar-tissue formation and improved tissue elasticity during healing.
- Cardiac and neurological models — early-stage research only.
- What's missing — controlled human trials. It has a long veterinary history (racehorses, notoriously) but remains preclinical for humans.
How protocols are commonly structured
The research community typically describes a loading phase — around 2–2.5 mg twice per week for 4–6 weeks — followed by a maintenance phase of the same dose every one to two weeks. It is very commonly run alongside BPC-157: the shorthand is BPC for the site, TB for the system. Blended vials containing both compounds exist for exactly this pairing — see the Jiu-Jitsu recovery stack.
Reconstitution & storage
Lyophilized powder; reconstitute with bacteriostatic water (calculator). Refrigerate after mixing and use within about 4 weeks. Note the doses here are in mg, not mcg — a 10 mg vial is only 4–5 loading doses, so plan vial counts accordingly.
Research protocols, not a prescription — talk to a physician before touching anything.