Copper peptide, or GHK-Cu, sits slightly apart because it is best known for skin and connective tissue support, and you can explore how GHK-Cu is used within a supervised protocol for connective tissue and skin recovery, including why sourcing and provider oversight still apply if that is your interest
Thats when a deficiency can occur
Furthermore, as copper is a physiological inhibitor of angiotensin-converting enzyme, its deficiency disinhibits the renin-angiotensin-aldosterone system, further exacerbating hypertension [216, 217]
It's essentially researched for helping skin and connective tissue repair and rebuild the way they did when you were younger
Though unlikely with typical product concentrations that fall within safe parameters, awareness of this risk remains important