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While formal pharmacokinetic parameters (Cmax, AUC, t1/2) have not been published in peer-reviewed literature for oral dosing in humans, its low molecular weight (173 Da), positive charge, and water solubility support intestinal absorption
Similarly, the production of ROS by immune cells is essential for the destruction of invading pathogens [6]
Final thoughts GHK-Cu shelf life varies dramatically by form and storage conditions - lyophilized powder maintains 18-24 months frozen or 12-18 months refrigerated but degrades in just 2-4 months at room temperature, while reconstituted solution lasts merely 28-30 days refrigerated with bacteriostatic water and should never be frozen as ice crystals destroy peptide structure
Garca-Gimnez JL et al (2013) Nuclear glutathione
GHK-Cu is a naturally occurring tripeptide complex glycyl-L-histidyl-L-lysine that binds copper(II) ions with high affinity
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