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glutathione synthesis in erythrocytes Erythrocyte metabolic pathways synopsis. 2,3 DPG, Glutathione: an overview of biosynthesis
Description
If GHK-Cu were developed as a pharmaceutical drug, its applications would likely be limited to specialized medical fields, such as wound healing and injectable therapies

Nature 599(7886):628634

After successful formulation into topical cream and favorable clinical results, a decapeptide P4 also known as decapeptide-12 has been commercialized as the main active ingredient in a skin-lightening product 109

So if we can heal the gut naturally that's can potentially help the rest of their health
