A slight blue-green tint from the copper component of GHK-Cu is normal and does not indicate degradation
Hanna, M., Jaqua, E., Nguyen, V., & Clay, J
Levels below 0.5 indicate you are not consistently in ketosis, meaning carbohydrate intake may be too high or protein intake may be excessive enough to trigger gluconeogenesis
(heparin), 10 g/kg i.g
"Comparative study among glutamine, acetyl-L-carnitine, vitamin E and methylcobalamine for treatment of paclitaxel-induced peripheral neuropathy." Clin Cancer Investig J 3(3): 213-219
How GHK-Cu Compares to Other Hair Treatments Understanding where GHK-Cu fits requires comparing mechanisms not making equivalence claims, since the evidence base for GHK-Cu is far smaller than for established treatments