Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 Glutathione Index Test Food for the Brain Foundation Not all Copper Peptides are created equal If you've tried copper peptides before and saw no change, here is why: Concentration and Stability. Most serums use a diluted solution that barely scratches What is GHK CU & why its called the Blue Magic !!! , Today I want to talk about a very powerful ingredient in skincare & haircare & Longevity Wellness , What is Copper Peptide?, Its basically pure