The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, Anti aging GHK Cu (Copper Peptide) and Methylene Blue infused Whipped Grass fed finished Tallow Balm, Made with Organic ingredients. Moisturizer Moisturizers Rejuvenating TikTok Shop Copper peptide GHK Cu Wikipedia GHK Cu Peptide Serum: Copper Peptides for Skin Firmness Mythos Mythos Skincare