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B12 plays a role in the production of neurotransmitters such as serotonin and dopamine, which are responsible for regulating mood and promoting a sense of well-being
Extended exposure (days to weeks) progressively reduces potency
It can also make you feel tired or weak
Severe reactions are rare, but as with any treatment, its essential to consult a healthcare provider to discuss any concerns
The most important unresolved safety-related research gaps include long-duration exposure, broader dose-response toxicology, sex-specific effects, reproductive and developmental endpoints, hematology, immune monitoring, genotoxicity assessment, and comprehensive off-target profiling across methyltransferase and non-methyltransferase targets
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