Theres evidence in animals (though not humans) that it can help with wound healing and tissue regeneration
However, as reassuring as all of this is, there are a couple of things to remain mindful of: Copper toxicity Because GHK-Cu contains copper, it does pose a potential risk of copper toxicity,12 the symptoms of which include abdominal pain, vomiting, chest pain, chills, cough, fever, general weakness, anemia, burning sensations, tremors, and a metallic taste in the mouth.13 The risk is small, as the concentrations of copper in the peptide are typically well within safe parameters, but its good to be aware of it
How Long Should You Take L-Carnitine for Weight Loss Results
Nanoencapsulation for Agri-food applications and associated health and environmental concerns
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It covers not only named substances but also any agent "with a similar chemical structure or similar biological effect(s)" to those named [1]