Whilst B12 injections (hydroxocobalamin) are licensed NHS medicines for treating confirmed deficiency states such as pernicious anaemia, lipotropic injections lack MHRA marketing authorisation and robust clinical evidence
Most people start losing weight during this phase
Figure S2: study flow diagram
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