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TB-500

Healing & RecoveryResearch Use Only

Also known as: Thymosin Beta-4 fragment, TB4 fragment, Tβ4

A synthetic piece of a natural repair protein (thymosin beta-4), studied for muscle, tendon, and soft-tissue recovery.

Dosing quick reference

research reference
Starting dose
500 mcg once daily
Frequency
Once daily
Typical range
500–1,000 mcg per day
Cycle
8–12 weeks on, then take a break
Titration (step-up)
Wk 1–2: 500 → Wk 3–4: 600 → Wk 5–8: 750 → Wk 9–12: 1,000 mcg
Half-life
Commonly cited as relatively long due to tissue distribution; variable across studies
Route
Subcutaneous or intramuscular (research)
Common use
Studied in research contexts involving muscle, tendon, and connective-tissue recovery and cell migration
Common vial sizes
5 mg · 10 mg
Storage
Lyophilized powder stored refrigerated or frozen away from light; reconstituted solution kept refrigerated (2–8 °C) and used within a few weeks
Stacking notes
Frequently paired with BPC-157 in recovery-oriented research discussions

Reported side effects

Injection-site irritationTransient fatigue reported anecdotallyHead-rush sensation reported anecdotally
Regulatory note: Not approved for human use; prohibited in most competitive sport under WADA; sold for research purposes only
Calculate a dose →TB-500 on The Peptide Guide →Deeper research reference: literature dose ranges, storage and handling, and where to source in Canada.

Dose figures are ranges commonly referenced in research literature, not recommendations or medical advice. Research-only labeling does not establish that a substance is safe, approved or appropriate for personal use. Consult a qualified healthcare professional about health decisions.