What is TB-500 and what is it used for?

TB-500 (Thymosin Beta-4) is a synthetic version of a naturally occurring peptide involved in wound healing and cellular regeneration. It works by upregulating actin, a protein essential for cell structure and movement, promoting cell migration to injury sites, and modulating inflammatory cytokines. Research suggests TB-500 may accelerate healing of muscles, tendons, ligaments, and skin wounds. It's being investigated for athletic recovery, injury rehabilitation, and potential cardiac protection. Typical dosing in research contexts ranges from 2-5 mg weekly, often divided into multiple injections. TB-500 is not FDA-approved for human use, and human clinical data is limited compared to animal studies. It's primarily available through research chemical suppliers and some compounding pharmacies. Quality control varies significantly between sources. Many users stack TB-500 with BPC-157 for synergistic healing effects, though evidence for this combination is anecdotal rather than from controlled trials.