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GHK-Cu is a naturally occurring copper peptide found in human plasma, saliva, and urine, with plasma levels that decline from approximately 200 ng/mL at age 20 to 80 ng/mL by age 60
Peptides with fewer residues are more susceptible to rapid enzymatic degradation, leading to shorter systemic exposure. Fosgerau & Hoffmann, Drug Discovery Today Half-Life Each peptide has a defined biological half-life the time it takes for half of the substance to be eliminated from the bloodstream
On appearance, they look as they always have done
The treatment itself is simple: vitamin B12 injections
If you are weighing a B12 shot against a full energy IV drip, the choice usually comes down to time and breadth
