Skin & wellness

Copper peptides deep dive

GHK-Cu, copper tripeptide-1, and why copper shows up in both serums and oral wellness stacks.

GHK-Cu basics

Gly-His-Lys bound to copper—a naturally occurring plasma peptide that declines with age. Topical use focuses on repair and collagen support; oral use is more controversial.

INCI confusion

You might see Copper Tripeptide-1, GHK-Cu, or “copper peptide” on different products. Check concentration and formula pH—copper peptides can clash with strong acids or L-ascorbic acid in the same routine.

Expectations

Popular in “wound-healing” and anti-aging routines; not a replacement for retinoids, SPF, or dermatology care.

Peptides in this guide