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Have a B12-rich food like steak, and your serum level can rise to more than 1500 pg/mL for a short time

Bruce HR Wolffenbuttel About the author Bruce Wolffenbuttel is a Professor Emeritus MD PhD and an expert in endocrinology, metabolic diseases, and diabetes, with numerous published papers to his name

*Correspondence: Sofia Viana, [email protected] These authors have contributed equally to this work Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers

Monitoring Your Progress Systematic progress monitoring helps assess whether GHK-Cu is working and guides protocol adjustments