Realistic expectations: GHK-Cu is a real, well-studied peptide with genuine effects but it isnt a miracle compound, and individual response varies
So a lot of people complain about insomnia, they complain about their heart racing or heart palpitations, various things like that, overstimulation, feeling like the lights are too bright or the sounds are too strong or whatever
This positions FOXO4-DRI within advanced molecular longevity research rather than endocrine or metabolic peptide categories
Ayari, A
Sci China Life Sci 66(8):19471948
If stress is chronic, it can deplete your stores faster than your cells can produce new molecules, making it essential to support your internal production through rest, nutrition, and targeted supplementation