PEPTIDE SPOTLIGHT: GHK Cu (Copper Peptide) Loose skin. Crepey texture. Dull, tired looking skin. Let's talk about the peptide that actually supports skin firmness from the inside out GHK Cu is GHK Cu Copper Peptide Neck & Face Serum 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 GHK Cu Peptide: What It Does for Body Composition and Metabolic Health