https://nutritionfacts.org/video/the-best-type-of-vitamin-B12-cyanocobalamin-or-methylcobalamin/
The Best Type of Vitamin B12: Cyanocobalamin or Methylcobalamin?
For prevention and treatment of vitamin B12 deficiency, cyanocobalamin in chewable, sublingual, or liquid forms is best under most circumstances.
vitamin b12 cyanocobalaminthe besttypemethylcobalamin