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Pickart & Margolina (2018) Biomolecules : Review documenting GHK-Cu's regenerative and protective actions across skin, wound healing, lungs, and nervous system

Psychiatry 177 SunW.FunakoshiH.NakamuraT

172 Natural compounds such as curcumin, quercetin, and salvianolic acid B have also demonstrated transporter-inhibitory properties with relatively low toxicity, although issues with solubility and bioavailability have limited their clinical utility and prompted formulation optimization

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Since the high selectivity, affinity chromatography is applied for single-step purification