Our combination of GHK CU Peptide Therapy + advanced laser skin treatments helps support collagen production, improve skin texture, reduce redness, and promote a healthier, more youthful appearance. At Icon MD, every treatment The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Part of Getting Ready for the Holidays: The combination of Sculptra, a PLLA collagen biostimulator and GHK Cu (copper) peptide is a powerful approach to building collagen and elastin for firmer, plumper, GHK Cu Youthful Skin, Healthy Cells, Vibrant You.