Most published research and the commercially available research-grade material is supplied as the copper-bound complex, which is the biologically active form in published cell-culture and animal studies
If you are new to copper peptides or have sensitive skin, start slowly
Peptides address inflammation and degeneration

Key Messages Intestinal paracellular permeability accounts for the movement of ions and small solutes between the intestinal lumen and the circulation through intercellular tight junctions Studies of the intestinal paracellular transport of large molecules, particulates, and bacteria investigated in cultured epithelially derived cells have to a large extent not been replicated in living organisms Intestinal permeability implying transport through intercellular tight junctions is only one component of the intestinal barrier. The two terms should be used precisely and not interchangeably Many exotoxigenic pathogenic enteric bacteria disrupt the structure and function of the tight junctions, resulting in massive fluid secretion and diarrhea It is unlikely that endotoxin enters the circulation via the paracellular route in undamaged intestinal mucosa M-cells are the most probable entry point of luminal bacteria into the submucosal lymphatics The common assumption that bacterial endotoxins or intact bacteria are transported through the intestine via the paracellular pathway in health or disease is not supported by data obtained in vivo or in vitro in intact mucosa The concept of the leaky gut should be broadened to encompass pathways other than paracellular permeability in the genesis of diseases attributed to endotoxemia References Nagpal R, Yadav H

Aplastic Anemia & Bone Marrow Failure ICD-10 Codes (D60D61) This category covers serious disorders that reduce or shut down red blood cell production
"Effects of topical creams containing vitamin C, a copper-binding peptide cream and melatonin compared with tretinoin on the ultrastructure of normal skin - A pilot clinical, histologic, and ultrastructural study"