Truthfully, while there is still some promising research around GHK when taken orally, most of these claims should be taken with a grain of salt
10.1016/j.mam.2008.08.003 Mol Aspects Med
Ferroptosis, as the most enriched programmed cell death process in glioma, induces immunosuppression and immunotherapy resistance
Front Pharmacol 13 , 808855 (2022)
These include: Pregnant or breastfeeding women Individuals with severe kidney disease People with asthma or severe allergies Patients taking certain medications that may interact with antioxidants Consulting a doctor before starting treatment is always recommended
That position on the list places the actual peptide concentration somewhere between 0.001 and 0.1 percent by weight, with no encapsulation, no pH protection, and no delivery system that addresses any of the four failure modes above