TB-4 Fragment
Also known as: TB-500 Fragment, TB4-Frag
Active fragment of Thymosin Beta-4 containing the actin-binding domain; smaller molecule with focused tissue repair and anti-inflammatory action.
- Typical dose
- 500 mcg – 1.5 mg
- Frequency
- once daily
- Route
- Subcutaneous
- Half-life
- 1.5 hours
- Routes
- Subcutaneous
- Status
- Research chemical
Benefits
- Targeted tissue repair
- Anti-inflammatory
- Smaller molecule (better absorption)
- Wound healing
Dosing
A common research range for TB-4 Fragment is 500 mcg to 1.5 mg once daily. Can be used as alternative to full TB-500. These figures are reference points from published literature, not a prescription — your protocol should be set with a licensed provider.
Reconstitution
A typical reconstitution for TB-4 Fragment is 5 mg of peptide in 2 mL of bacteriostatic water, giving roughly 2.5 mg per mL. Vial's built-in calculator works out the exact syringe draw for any vial size and dose.
Half-life
TB-4 Fragment has an approximate half-life of 1.5 hours. Vial can display informational half-life estimates when supported data is available. These estimates are not measured blood concentrations or dosing instructions.
Storage
2-8°C post-reconstitution.
Reported side effects
- Injection site irritation
Contraindications
- Active cancer (theoretical)
Commonly stacked with
Track TB-4 Fragment with Vial
Vial logs every TB-4 Fragment dose, organizes your schedule, and offers reconstitution math and supported half-life estimates. Tracking records stay on your device. A Vial Pro subscription is required. Download Vial on the App Store →
This page is for educational and harm-reduction purposes only. TB-4 Fragment is not FDA-approved for most uses described here. Always consult a licensed physician before starting any peptide protocol. Vial does not sell peptides, recommend vendors, or provide medical advice.