Koreana Skin GHK Cu Copper Peptide Mask Revitalizing & Firming Hydrogel Sheet Mask GHK CU aka the beauty peptide. I've got the reconstitute and dose chart at the end for reference. Where I purchase mine from Elite Peptides Australia Discount code WISHY10 (because who doesn't love Can You Put Hot Food in the Fridge? Epicurious Most peptides don't come ready to inject they come as powder for a reason. Peptides are lyophilized (freeze dried) to keep them stable and effective. When you receive them, you simply: Add GHK Copper Peptide GHK Cu Tripeptide 1