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
Always use sterile injection techniques to avoid infection or irritation
Toxicology studies have shown no lethal dose (LD1) could be achieved in animal models, suggesting a wide therapeutic window
This move is in an attempt to prevent cachexia, which accounts for 20% of cancer mortalities (5)
For a full breakdown of peptide storage best practices, read Peptide Mind's guide on how to store peptides
I have no hard evidence , just what Ive read on this forum for over 9 years