b12 nasal spray or injection B12 - Boost energy +

People that have pernicious anemia usually require B12 shots

People with MCAS are also more likely to have side effects from B12 supplementation

[101] Tyrosine shines during sleep deprivation As most of us know from painful experience, sleep deprivation can have significantly deleterious impacts on both mental and physical performance

And if your B12 levels are normal, getting B12 injections isnt going to do anything

A deficiency in zinc can lead to a weakened immune response, making supplementation beneficial for immunity support

Moreover, mosaic-8b protected against SARS-CoV-2 Delta as well as SARS-CoV-1 challenge in nonhuman primates [142]