100 units of injectable b12 Cyanocobalamin for injection 1000 mcg Multiple-Dose Vials 1mL x 25/Tray (Rx) Vitamin B Rx Vitamin B12 Injection 3000mcg/ml

Then, in the 70s, that number increased to once every two months

The dose depends on their age, weight, and why they need B12

Increase energy levels (more consistent and sustained energy throughout the day with less crashes) Improved sleep at night Improved hair growth or decreased hair loss (hair loss is multi factorial but almost always iron, B12, and protein levels play a role) Improved immune system (many patients use the boost while they are acutely ill or use it to prevent getting sick around others) Improved weight loss (not a direct benet, but having more energy allows for more exercise) Improved mood, decreased depressive symptoms and more emotional stability Improved concentration and decreased brain fog (Frequently helpful in patients with ADD like symptoms)

Spray once into each nostril

Seventeen studies were conducted in hospital settings, and the remaining 8 in university hospital settings