Link Cox HD, Smeal SJ, Hughes CM, Cox JE, Eichner D
GHK-Cu 100mg (10 vials) is a laboratory research peptide used to study peptide-copper interactions, signaling pathways, and cellular-response patterns in controlled experimental systems
29,289,290,291 Apart from decreased red blood cell survival ineffective erythropoiesis because of increased numbers of apoptotic cells is implicated as one of the pathophysiologic features of PK deficiency
The compound is the cheap part of this whole endeavour
Learn How An easy to follow step-by-step for intramuscular injections can be found on our How to Perform an Intramuscular Injection of Vitamin B12 page
Neither is "better" universally they engage different mechanisms for different research questions