copper tripeptide 1 inci ghk cu Skin Perfection 1% GHK-Cu Peptides Serum for Face Hair Scalp .5 oz Helps Skin Look Firmer GHK Copper Peptide | GHK-Cu
Description
Mostly yes, and in some cases the legal version is stronger than the gray-market version

Jones & Bartlett Learning

CYE64d+Q`g)*C 6Qt {I x +hC8'LA8= = #[^ e\j X7sMg|4p)'yWuQD kul(Kgx [ =g,,=VzrvM` 8u t3FHRZtTILo.[X$m|eF0Xy7o(yyVF|[^j@bJ

Many users find combining both approaches, using chemical exfoliants for surface improvement and copper peptides for deeper repair, provides optimal results
