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The authors also noted that further optimisation was needed, including work relating to high clearance in mice and off-target activity against monoamine oxidase A

Can I have a B12 injection if I am not deficient

Understanding how AHK-Cu fits among other options helps researchers make informed protocol decisions

Comparing the sublingual method to vitamin B12 injections, research found that taking B12 under the tongue had a higher absorption rate, making it a better option (Bensky, 2019)

Some people say it's better pre-workout

We typically administer the shot into a large muscle to ensure the B12 is absorbed steadily over time