TB-500
Warnings. Research compound; not FDA-approved. Long half-life makes dosing errors slower to clear.
Mechanism
Upregulates actin, a cell-building protein essential for cell migration and tissue regeneration; promotes angiogenesis and downregulates inflammatory cytokines.
Overview
TB-500 is a synthetic fragment of Thymosin Beta-4, a naturally occurring peptide involved in tissue repair. It promotes cell migration, new blood vessel formation, and reduced inflammation throughout the body. Commonly used for soft-tissue injuries, flexibility, and overall recovery.
Protocols
Loading + Maintenance
Official
INTERMEDIATE
Two-week loading phase at higher dose followed by a maintenance phase.
Goal: Systemic healing and recovery
Step 1 2w
5 mg · 1×/day
Loading phase: 5mg twice weekly for 2 weeks.
Step 2 4w
2.5 mg · 1×/day
Maintenance: 2.5-5mg twice weekly for 4-6 weeks total cycle length.