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Nasal spray protocol: Dose: 200-500 mcg per application Frequency: 1 to 2 times daily Duration: 4 to 8 weeks Nasal delivery is particularly interesting for researchers focused on neurological applications, as the nasal route provides a potential pathway to bypass the blood-brain barrier through the olfactory and trigeminal nerve pathways

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B12 is involved in fatty acid metabolism that builds an insulating lipid-rich layer surrounding a neuron’s axon (the myelin sheath), which speeds up nerve signals and enhances learning and logical thinking processes