b12 for injections Are Vitamin Shots Right You? MIC B12 from Fitish RX Cyanocobalamin (B12) Injection 1000 mcg/mL,

In fact, many adults are unable to absorb B-12 into their body at all

High concentrations for IV use should be diluted in normal saline or another compatible IV fluid before administration

"5-deoxyadenosylcobalamin and methylcobalamin as sources for Vitamin B 12 added as a nutritional substance in food supplements: Scientific opinion of the Scientific Panel on Food Additives and Nutrient Sources added to food"

And thanks to its lack of interaction with growth hormone receptors, 5-Amino 1MQ doesn't cause insulin resistance

Methylcobalamin and 5-deoxyadenosylcobalamin are the forms of vitamin B 12 used in the human body (1)