Some people use it to try to boost recovery from jet lag or ease chronic insomnia that doesnt respond to melatonin
Even tried fecal microbial transplant, which was preceded by a barrage of numerous oral antibiotics of virtually every class, followed by a night long laxative gut-prep as is done prior to a colonoscopy, then introducing the inoculant (donor feces) with a very long tube, to get it well up into the colon, once a day for a week
Touching needle tips or allowing them to contact any surface before insertion transfers contaminants
[43] listed some commercialized IN large molecules products, N-to-B transport of various proteins and peptides, and the various polymer and lipid-based nanocarrier systems used for N-to-B delivery of protein and peptides
These bioidentical forms of B12 and folate require no further conversion in the body and are immediately available to be used in many essential biological processes
The mechanisms include reduction of excitotoxicity and oxidative stress, enhanced neurotrophic factor expression supporting neuronal survival, angiogenesis improving blood flow, and modulation of dopamine and serotonin systems