- 5,000 mcg per capsule
- Highly dosed and inexpensive
- Contains 3000 mcg of vitamin B12 per lozenge
- Completed with folic acid, vitamin B6 and biotin
- Contains 600 mcg of biotin per capsule
- Low dose
- Contains 2,500 mcg of the B vitamin Biotin
- Contains 2500 mcg biotin per capsule
- Medium dosed