The Abdomen is an easy place for most people to access when self-injecting vitamin B-12, which is why it is a very common area for B-12 injections
While beta-3 receptor density varies between fat depots (higher in visceral, moderate in abdominal subcutaneous, lower in gluteal-femoral), the peptide works systemically
From a theoretical pharmacological standpoint, combining a peptide with putative lipolytic activity (AOD 9604) with a potent triple incretin receptor agonist (retatrutide) could potentially amplify metabolic effects but this is speculative and raises the possibility of compounding adverse effects with no safety data to guide dosing or monitoring
Why GHK-Cu and AHK-Cu Peptides
Obesity Reviews, 17(3), 251-260
Finding the correct dosage for your personal needs requires close work with your healthcare professional