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An in vivo dextran sulfate sodium (DSS)-induced acute colitis mouse model was used for physiological validation

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Wound-healing biology: re-epithelialization, angiogenesis, granulation-tissue quality (model-dependent)

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While both are research peptides without FDA approval, they differ significantly in origin, mechanism, and research background: Property TB-500 BPC-157 Origin Thymosin Beta-4 (thymus) Body Protection Compound (gastric juice) Amino Acids 43 15 Primary Mechanism Actin regulation, cell migration Angiogenesis, nitric oxide modulation WADA Status Prohibited (S2) Not currently prohibited FDA Status Not approved Not approved For a comprehensive comparison of mechanisms, research backgrounds, and combination research rationale, see our detailed BPC-157 vs TB-500 research comparison