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Skin Journal

Evidence-led guides to the ingredients we formulate with. Written to be useful whether or not you buy anything from us: what each one does, what it doesn't, and how to use it.

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Latest · peptides

GHK-Cu Copper Peptides: What the Research Actually Shows

Copper peptides have forty years of published research and a reputation that runs ahead of it. What is supported, what is thin, and what to expect week by week.

5 August 2026 · 5 min read

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  1. 3 GHK-Cu Copper Peptides: What the Research Actually Shows

Peptides

Copper, collagen and what forty years of research does and doesn't support.

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