@user8859863611611: GHK-Cu Copper Peptide cosmetic rawmaterial with stable high purity.Small molecule structure,easy to blend into essence,cream,facial mask and toner. Smooth raw material texture,compatible with all daily skincare formulations.We support global bulk wholesale and stable stock supply for beauty manufacturers. #GHKCu#CopperPeptide#PeptideRawMaterial#Cosmeticlngredient