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TB4 is classified as a research chemical in the United States and is not FDA-approved for human use outside clinical studies

By modulating the expression of growth factors and antioxidant enzymes, the peptide accelerates tissue repair processes

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Encourages Wound Healing Research suggests GHK-Cu can accelerate healing after skin injuries, laser procedures, microneedling, and cosmetic treatments

Initially described as a pro-atherogenic molecule due to its proliferative role in VSMC, it was further demonstrated that the effect of IGF-I on VSMC was to compensate for local apoptosis, and that, overall, IGF-I is not pro-atherogenic in native arteries but anti-atherogenic[320], mainly through enhanced nitric oxide production[308]