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GHK-Cu is stable at physiological pH (6.57.5) but dissociates below pH 4 or above pH 9, releasing free copper, which can be pro-oxidant if unbound

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That said, it is not a guaranteed solution, and responsible use requires education, medical oversight, and realistic expectations

Evidence comparison: GHK-Cu has a substantially larger body of published research, spanning from Pickart's original 1973 isolation through hundreds of subsequent studies

The FDA will meet in July to discuss its position on seven peptides, including molecules it deemed unsafe in a Biden-era ruling

It exists in almost every cell of the human body, acting as a primary shield against oxidative stress