Understanding GHK-Cu's shelf life across different forms - lyophilized powder before reconstitution, reconstituted injectable solution , pre-made serums, and homemade DIY formulations - prevents wasted money on degraded product while maximizing the peptide's proven collagen-stimulating effects
However, more important is the practical evidence from a considerable number of the studies, particularly in gastrointestinal research, that intragastric administration or per os administration in drinking water, is equally effective as injections of the supplement administered to rodents, which has been performed in the majority of studies on BPC 157
Educational reference, not medical advice or dosing instructions
[34] Glutamate and aging [edit] Brain glutamate levels tend to decline with age, and may be a useful as a marker of age-related diseases of the brain
Oxidative Medicine and Cellular Longevity, 2017 , 7265238.