Journal
GHK-Cu vs. Retinol: Why I Built My Night Cream Around a Peptide Instead
Retinol and GHK-Cu can both support visible skin renewal, but they do it through very different biological pathways. Here is why I chose a copper peptide as Alchemy 21/12’s most advanced nighttime signal.
The Copper Uglies: Why Copper Peptides “Ruin” Skin
The “copper uglies” are real, but overuse is only half the story. A badly formulated copper peptide product can create problems no matter how carefully you use it. Here’s how to tell whether the issue is your routine or what’s inside the bottle.