Buy DSIP (Delta Sleep Inducing Peptide) Peptide Works A lot of people asked how I use GHK Cu (copper peptide) with a pen device, so here's a quick tutorial showing exactly how I do it. In this video I show how Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application ScienceDirect How to Use Copper Peptides Guide Neurogan Health