Time for a little GHK CU update for the people who are interested. It's day 9. I took a little break on day 5 just so my body didn't get too 'used' to GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B GHK Cu 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B