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Toxics 12(9)
Refrigeration is mandatory for shelf life beyond a few days
If a severe deficiency is found, a loading dose phase may be recommended, consisting of weekly injections for the first month
Research Note: In a gene-array analysis of skin cells reviewed by Pickart and Margolina in the International Journal of Molecular Sciences (2018), GHK produced a change of 50% or greater in expression for 31.2% of the human genes tested, with about 59% of those genes upregulated and 41% suppressed (Pickart & Margolina, 2018)
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