Frequently, vitamin B12 deficiency is caused by people not getting enough vitamin B12 in their diet through meat, fish, dairy, and fortified food sources
If you believe it, do it
Balenovic D, Bencic ML, Udovicic M, Simonji K, Hanzevacki JS, Barisic I, et al
(2021) showed synaptic improvements and reduced amyloid pathology in transgenic Alzheimer's mice treated with Dihexa
When it might shine If your main goal is improving restful, restorative sleep (especially those deep delta-wave sleep periods), maintaining better sleep efficiency, and supporting your sleep-wake cycle without major disruption the nasal spray form of DSIP may be very appealing
Make sure this location is kept out of sunlight, preferably a cabinet