GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution About 50% of people will say it's a miracle while the other 50% will say it's useless. Read these papers yourself and find out where you stand. GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Introducing DSIP: Your New Sleep Advantage We're excited to introduce DSIP, a physician directed protocol designed to support deeper, more restorative sleep by working with the body's natural rhythms rather than against them.