Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Jumbo Size How should a 50 mg vial of GHKCu be reconstituted and how many days will it last when given at 2 mg daily for five days with a twoday break? GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B GHK Copper Peptide GHK Cu Tripeptide 1 The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds,