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GHK-Cu frequency stays daily (5/2)
Systemic copper toxicity is unlikely at recommended doses
The most chemically complex of all the vitamins, methylcobalamin is a water-soluble, organometallic compound with a trivalent cobalt ion bound inside a corrin ring which, although similar to the porphyrin ring found in heme, chlorophyll, and cytochrome, has two of the pyrrole rings directly bonded
The C-terminal acidic residues contribute to water solubility and may participate in ion interactions
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