What Is It?
A synthetic version of Thymosin Beta-4, a naturally occurring peptide found in nearly all human and animal cells. Researched primarily for tissue repair and recovery.
Everything in one place — $4.99/mo, cancel anytime.
How Does It Work?
Upregulates cell-building proteins like actin, promotes cell migration to injury sites, reduces inflammation, and supports new blood vessel growth. Think of it as your body's natural repair crew getting a bigger budget and more workers.
Primary Benefits
- Muscle tissue repair
- Reduced inflammation
- Improved flexibility
- Wound healing acceleration
- Hair regrowth (in research)
Run the Numbers
Calculate your TB-500 reconstitution — BAC water volume, syringe units, and draw amounts. Free, no login required.
Open the BPC-157 + TB-500 Blend Dosage Calculator →Single compound? Use the Peptide Reconstitution Calculator →
The Honest Part
- Not FDA-approved for human use.
- Removed from FDA Category 2 restrictions (April 2026). TB-500 is not on the FDA 503A Bulk Drug Substances List and is not approved for prescription compounding. It was reviewed by the FDA Pharmacy Compounding Advisory Committee on July 23, 2026; committee recommendations are advisory and non-binding, and no final rule has been issued.
- Most human evidence is anecdotal.
- Always consult a physician.
Track TB-500 in the App
Peptide Manager Pro tracks 100+ compounds with an interactive knowledge graph, dosing calculator, protocol tracker, and AI research chat. Veteran-owned. $4.99/mo founding rate.
Get the App →