GHK-Cu Approved for cosmetic and topical use globally
Although it entered phase 1 trials in consideration as a treatment of ulcerative colitis, it has not been approved by the US Food and Drug Administration (FDA) for medical use, and data on human subjects is lacking
Drug Testing and Analysis 9:14901498 Duzel A, Vlainic J, Antunovic M, Malekinusic D, Vrdoljak B, Samara M, Gojkovic S, Krezic I, Vidovic T, Bilic Z, Knezevic M (2017) Stable gastric pentadecapeptide BPC 157 in the treatment of colitis and ischemia and reperfusion in rats: new insights
This quick and easy injection has been proven to increase energy levels, improve mood, anemia and insomnia
As for the nasal spray version just make sure you use it with realistic and appropriate expectations about what it will and will not do for you