This compound is primarily studied in research/clinical settings & may not be widely available as a regulated over-the-counter supplement. Information is provided for educational purposes only — not as a recommendation to use. See our Safety page.
Thymosin Beta-4 (TB4) / TB-500 (fragment)
TB4 has animal wound-healing data & has been evaluated in human wound indications (e.g., venous stasis ulcers). TB-500 is a synthetic fragment; direct clinical evidence for TB-500 itself is limited.
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In a rat wound model, TB4 increased re-epithelialization & improved contraction versus saline controls, supporting a wound-healing mechanism in animals.
TB4 gel has been studied in venous stasis ulcer indications; registry evidence supports clinical testing, though effect sizes depend on the specific trial & endpoint reporting.
A review summarizes phase 2 wound-healing programs reporting faster healing in those that did heal; note that these are not sports injury RCTs.
Stacks containing Thymosin Beta-4 (TB4) / TB-500 (fragment)
Public community stacks that include this ingredient.