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
Vitamin B12 helps calm irritated skin, especially when the skin barrier is compromised
Do not take any lipotropic injections containing phentermine if you have cardiovascular disease, hyperthyroidism, glaucoma, take monoamine oxidase inhibitors, or have a history of drug dependency
Vitamin B12 deficiency is common among many, particularly in older people
doi:10.1007/s00394-010-0119-6
For patients receiving intramuscular B12 injectionsthe standard treatment for pernicious anaemia and severe deficiency neurological symptoms may start improving within one to two weeks , whilst haematological parameters typically normalise within approximately eight weeks