That timeline is not arbitrary
Here is the listing for the unit mg/g
Longevity-focused patients may continue indefinitely under ongoing medical supervision
Scientific studies conducted in different research laboratories around the world have established that human tri-peptide GHK-Cu possesses a plethora of biological actions including activation of wound healing, attraction of immune cells, antioxidant and anti-inflammatory effects, stimulation of collagen and glycosaminoglycan synthesis in skin fibroblasts and promotion of blood vessels growth
1994;9(11):20442050 Lenzi A, Sgr P, Salacone P, Paoli D, Gilio B, Lombardo F, Santulli M, Agarwal A, Gandini L
This article was written to put a stop to this ignorance once and for all