Copper Amino Isolate Serum by NIOD
NIOD’s Copper Amino Isolate Serum 3:1 (CAIS3) is built directly around GHK-Cu, the copper peptide covered in our dedicated guide, at a stated 1% concentration, alongside an additional 1% GHK peptide, the same tripeptide without the copper bound to it. This is a more direct, single-ingredient-focused formula than the multi-peptide products covered elsewhere on this site, built specifically around the carrier-peptide mechanism: copper delivery intended to support the skin’s own collagen-related processes.
The formula also includes several supporting peptides, including Tripeptide-29, Myristoyl Nonapeptide-3, and Acetyl Tetrapeptide-2, alongside hyaluronic acid derivatives for hydration.
As with any cosmetic peptide product, claims here are limited to supporting the look of firmer, smoother-looking skin, not treating or reversing any skin condition. As with introducing any new active, patch testing is a reasonable precaution.








