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Copper coordination chemistry, briefly What makes GHK-Cu distinctive is how the tripeptide binds copper(II): the imidazole nitrogen of histidine, the N-terminal amine, and backbone nitrogens form a coordination geometry that holds the metal ion with high affinity
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Breath testing is how most people encounter the technology
Existing safety data is reassuring for supervised, cyclical use, but long-term continuous administration without professional oversight isnt something any reputable clinic would recommend
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