GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health GHK Cu 50mg Dosage Protocol PeptideDosages.com Powerock Pharma GHK CU 2500mcg 60 caps. 150 000mcg What is the optimal dosing regimen of GHKCu for topical skincare and woundhealing applications? The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline