| 19 21st Century B-12Supplement Rating   | 5 Life Extension BioActive Folate & Vitamin B12Supplement Rating   | 14 Life Extension B-12Supplement Rating   | 37 Life Extension MethylcobalaminSupplement Rating   | |
|---|---|---|---|---|
| Serving Size | 1 Tablet | 1 Vegetarian Capsule | 1 Lozenge | 1 Vegetarian Lozenge | 
| Price/Serving | $0.07 | $0.13 86% | $0.07 | $0.39 457% | 
| Servings Per Container | 110 | 90 18% | 100 9% | 60 45% | 
| Vitamin B12 | 2,500 mg (as cyanocobalamin) | 300 mcg (as methylcobalamin) | 500 mcg (as methylcobalamin) | 1 mg (as methylcobalamin) | 
| Vitamin B9 | missing substance or information* | 400 mcg (as L-5-Methyltetrahydrofolate calcium salt) | missing substance or information* | missing substance or information* | 
*Some information on the 21st Century B-12label may be missing, or it may have been written incorrectly. We work hard to keep the information accurate & up to date. Please let us know if you discover any errors.
