For ease of calculation, many researchers prefer a simple concentration
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
Pro tip: Best used under supervision in cutting phases when hunger regulation and energy preservation are key
If you are exploring treatment options, you may find it helpful to read our full guide on how to get TRT in the UK safely