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All published research is currently limited to comparison of raising B12 serum levels which is not the same thing
Both are valid
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Red blood cells are constantly undergoing regeneration
The foundational GHK-Cu work found collagen stimulation in human fibroblasts beginning around 1010 M and peaking near 10 M the same potency window later reported for AHK-Cu [10]
A licensed prescriber sets doses based on your body composition, goals, and existing medical conditions
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