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True B12 toxicity symptoms are rare but may include skin reactions such as acne-like eruptions, mild gastrointestinal disturbances, and occasional headaches, particularly following injections
A 2016 study published in Nature Scientific Reports directly compared copper compounds and found that while copper chloride and copper acetate were highly cytotoxic, GHK-Cu showed no cytotoxicity across all tested concentrations and did not induce inflammatory markers
4 weeks 2 vials 28 daily draws
An absence of intrinsic factor is the most common cause of pernicious anemia
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