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GHK-Cu, a variant of the peptide found in high concentrations in the brain, has been studied for its ability to counteract age-associated decline in neuron function
GHK and the GHK-Cu copper-tripeptide complex were isolated from human plasma by Dr
The trial was too small to detect the difference it observed, which makes the result uninformative rather than negative
Other GLP-1 receptor agonists have undergone more extensive b12 research
This increase occurs partly because stomach acid production decreases with age, reducing B12 absorption from food
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