GHK-Cu copper peptide illustrated penetrating skin layers and supporting dermis-level cellular signaling in skin biology
WHAT IS GHK-Cu?
HOW IT WORKS
WHY 0.10%?
THE SCIENCE
Photo of ION BLUE skincare founder, Tom Wilbur.

ION BLUE GHK-Cu 0.10%

Peptides Done Precisely

Copper Peptide Serum


ION BLUE is a copper peptide skincare brand built on transparency.

We make one product — a GHK-Cu (copper tripeptide-1) facial serum at a real, disclosed 0.10% concentration, with no proprietary blends, no fillers, and no diluted formulations. We also publish a free, citation-backed peptide research encyclopedia, so you can check the science yourself. GHK-Cu is a signal peptide studied for its role in skin — and we describe what it's studied for, never more than the research supports. In a category full of big numbers and bold claims, ION BLUE tells you exactly what's in the bottle, and why.

A copper peptide studied in published research. Minimal formula. No hype.

Free U.S. shipping on all orders

Precision, without excess.

ION BLUE is built on a simple idea — remove everything unnecessary, and keep only what earns its place.

Skincare, reduced to its essential form.