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The copper(II) ion chelated within the GHK tripeptide complex serves as a cofactor for lysyl oxidase, the enzyme responsible for collagen cross-linking and stabilization
Modulatory effects of L-carnitine on glucocorticoid receptor activity [PMID: 15591012] Laboratory literature summary: Modulatory effects of L-carnitine on glucocorticoid receptor activity
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Objective measurements (EEG, cardiovascular, and respiratory parameters) and subjective ratings (visual analog scales, awakening times) showed, assessed by Mann-Whitney U test, a normalization of severely disturbed sleep to normal sleep patterns
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