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IM stays elevated for slightly longer at the injection site
Treat it as what it is: an experimental add-on to a well-designed protocol, not a foundational compound
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
Absorption issues are common, especially in older adults
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