mechanism of action ghk-cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care Copper Peptides for Skin |

Side Effects Are Route-Specific Topical side effects are skin side effects: mild irritation, occasional blue-green tint from copper, rare hyperpigmentation

So at least in my case, and again, this is anecdata, it seemed to

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That means you cannot legitimately place 10.8% for cagrilintide next to 24.2% for retatrutide and declare a winner, because those numbers come from different trials, different populations, different durations (26 vs 48 weeks), different doses, and critically a monotherapy figure for one versus a monotherapy figure for the other, while cagrilintides strongest data are actually as a combination