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The nasal route theoretically offers direct nose-to-brain transport via the olfactory nerve pathway, bypassing the blood-brain barrier
No more sifting through forum posts trying to figure out conflicting advice
You may also feel nausea, reflux, or a burning feeling
$ = under $0.20 per serving $$ = $0.20-$0.75 per serving $$$ = over $0.75 per serving For those who dislike swallowing pills If you are not up for swallowing pills, you might consider other forms of vitamin B12
Lyophilized form is preferred for long-term storage
Chen J, Shi W, Ren Y, Zhao K, Liu Y, Jia B, Zhao L, Li M, Liu Y, Su J, Ma C, Wang F, Sun J, Tian Y, Li J, Zhang H, Liu K (2023) Strong protein adhesives through Lanthanide-enhanced structure folding and stack density
