A history of active cancer is a contraindication for growth hormone secretagogues, which is exactly why this stack should be prescribed after an evaluation rather than ordered online
Dig Dis Sci 36:905910, 1991 Sikiric P, Petek M, Rucman R, Rotkvic I, Seiwerth S, Grabarevic Z, Suchanek E, Jagic V, Krnjevic H, Mise S, Duvnjak M, Turkovic B, Udovicic I: Hypothesis: Stomach stress response, diagnostic and therapeutical value: a new approach in organoprotection
Apart from the effectiveness, another question that is tried to be answered is whether skin permeability of GHK allows it to act as an anti-wrinkle peptide at its site of action
These aren't just generic lab chemicals