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When the research question specifically isolates these two mechanisms, adding GHK-Cu introduces confounding from its gene-expression and anti-inflammatory effects
Placing the sulfur atom in cysteine with the two other amino acidsglycine and glutamateis the key
Functioning as a neuromodulator, DSIP influences the activity of GABAergic, glutamatergic, and opioid systems, which are integral to sleep, mood regulation, and pain perception ( 2, 6, 7 )
Its less invasive than injections, yet it achieves comparable bioavailability in many cases
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