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
Diagnosis usually entails measuring serum levels of vitamin B12 or identifying elevated levels of methylmalonic acid and homocysteine
Acceptable alternative options have only recently become available
Has it been studied for diabetes
Its assimilated through food intake and is mainly found in products of animal origin
After that, it may not be effective or safe to use