The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget GHK Cu Injection Pen Australia Subcutaneous Copper Peptide Inject+ GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution Four reasons this serum belongs in your routine. GHK Cu Peptides that firm and support collagen renewal. Barrier support to keep your skin healthy and resilient. No injection. No needles. No clinic visit.