For most healthy individuals with normal absorption capacity, cyanocobalamin is commonly used for oral supplementation due to its stability and effectiveness
If it is set lower, you diagnose less people with deficiency, and you have less people treated (or investigated further) who dont have deficiency
Samuel Figuero
It can also obscure the fact that there is no validated human use, dose, safety profile or approved indication
Vitamin B12, Fact Sheet for Health Professionals, National Institutes of Health, Office of Dietary Supplements Common questions about hydroxocobalamin, NHS (National Health Service), Hunt A, Harrington D, Robinson S
0.05 mL delivers the same dose at a higher concentration