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doi:10.1016/j.mehy.2021.110736 [3] Veljaca M., Sladoljev D., Mildner B

CSF blood- cerebral spinal fluid pial vessel-CSF barrier pial vessel-CSF barrier the ependyma and glia limitans and also the blood-retina barrier, blood-nerve barrier, blood-spinal cord barrier

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GHK-Cu is the specific tripeptide with the most clinical backing

Monitoring and follow-up: Routine blood monitoring of B12 levels after treatment initiation is generally unnecessary, as levels will be artificially elevated