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Sulfation helps eliminate hormones, neurotransmitters, and environmental toxins
The copper ion in GHK-Cu is sensitive to oxidation and light in ways that unbound peptides are not, which is why the handling recommendations for GHK-Cu include a few considerations beyond standard peptide storage protocols
cannot be legally marketed as a dietary supplement or medication
DOI: 10.1056/NEJM199407213310304, VOL
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