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Guideline 6: Special Population Considerations When figuring out B12 injection dosages and how often to give them, special groups need special care

Therapeutic doses of vitamin D can differ based on the same variables, but 50,000 IU (1,250 mcg) is a common amount according to the journal Nutrients

While topical application is convenient and non-invasive, the peptide faces a significant barrier: human skin is designed to keep foreign substances out

The peptide has also been reported to interact with central dopaminergic and serotonergic axes: rodent behavioral studies describe effects on neuroplasticity, GABAergic tone, and stress response

Alachkar, A., Brotchie, J

Finkley MB et al