bac water tractor supply 30ml Large Bottle With the addition of an appropriate solute this product becomes isotonic when used for this purpose. Sterile Water Diluent, 1,000 mL
Description
Cyanocobalamin is also often used as a supplement in people who have trouble absorbing vitamin B12 from their diet
If excessive foam persists for more than 10 minutes, you likely injected the water too forcefully or shook the vial

PMID 16087991

The broader evidence shows B12 corrects deficiency well
Using over-the-counter lightening products

Standard adult dosages range from 20 to 40 mg taken once daily at least 30 -60minutes before meals
