| "Vitamin B12, 1000 mcg" Lozenges | Absorb Science Inc. | 1,000 mcg | Canada | Lozenges |
| METHYLCOBALAMIN | Advanced Orthomolecular Research Inc. | 5,000 mcg | Canada | Lozenges |
| METHYLCOBALAMIN ULTRA | Advanced Orthomolecular Research Inc. | 15,000 mcg | Canada | Lozenges |
| C'LOVES Methylcobalamin 500mcg Tablet | AESTHESUISSE SDN BHD | 500 mcg | Malaysia | Tablets |
| HEALIVING SUPPLIES DMB-Protecta Caplet | AESTHESUISSE SDN BHD | 500 mcg | Malaysia | Tablets |
| Organic Super Greens Energizer | Ancient Nutrition | 12 mcg | United States | Tablets |
| Vitamin B-12 | Ancient Nutrition | 20 mcg | United States | Capsules |
| Methyl B12 - 15 mg | AOR Advanced Orthomolecular Research Advanced | 135,000 mcg | United States | Lozenges |
| Methyl B12 - 5 mg | AOR Advanced Orthomolecular Research Premium | 5,000 mcg | United States | Lozenges |
| Bio Activ METHYLCOBALAMIN 500mcg Capsule | BIO TREE PHARMACEUTICAL (INT`L) SDN. BHD. | 500 mcg | Malaysia | Capsules |
| Absorb-B12 sublingual | BioAbsorb Nutraceuticals | 1,000 mcg | Canada | Tablets |
| B12 | Bioclinic Naturals | 1,000 mcg | United States | Lozenges |
| Sublingual B12 Methylcobalamin | Bioclinic Naturals Inc. | 1,000 mcg | Canada | Tablets |
| BiOFIZZ Methylcobalamin 500mcg Tablet | BiOFIZZ | 500 mcg | Malaysia | Tablets |
| Biomerit Nerbion Tablet | Biomerit | 500 mcg | Malaysia | Tablets |
| Vitamin B12 Methylcobalamin 1000 mcg | BIOVEA | 1,000 mcg | United States | Tablets |
| Liquid Vitamin B12 2500 Wild Tart Cherry | Brain Forza | 2,500 mcg | United States | Liquids |
| Vitamin B12 1% (Methylcobalamin) | BulkSupplements.com | 200 mcg | United States | Other forms |
| Vitamin B12 1% (Methylcobalamin) | BulkSupplements.com | 200 mcg | United States | Powders |
| Vitamin B12 1% (Methylcobalamin) | BulkSupplements.com | 200 mcg | United States | Powders |
| Vitamin B12 1% (Methylcobalamin) | BulkSupplements.com | 200 mcg | United States | Powders |
| Vitamin B12 1% (Methylcobalamin) | BulkSupplements.com | 200 mcg | United States | Other forms |
| Vitamin B12 1% (Methylcobalamin) | BulkSupplements.com | 200 mcg | United States | Powders |
| Vitamin B12 1% (Methylcobalamin) | BulkSupplements.com | 200 mcg | United States | Powders |
| Vitamin B12 1% (Methylcobalamin) | BulkSupplements.com | 200 mcg | United States | Other forms |
| Vitamin B12 1% (Methylcobalamin) | BulkSupplements.com | 200 mcg | United States | Powders |
| Vitamin B12 | Carotec | 1,000 mcg | United States | Lozenges |
| Vitamin B12 | Designs for Health | 5,000 mcg | Canada | Lozenges |
| Fully Active B12 | Doctor's Best | 1,500 mcg | United States | Capsules |
| Vitamin B12 Cherry Flavored | DrFormulas | 3,000 mcg | United States | Tablets |
| B12 Infusion | Enzymatic Therapy | 1,000 mcg | United States | Tablets |
| NEUROD CAPSULE | Esprit Care Sdn. Bhd. | 500 mcg | Malaysia | Capsules |
| Vitamin B12 5000 mcg | Global Healing | 5,000 mcg | United States | Liquids |
| B12 | Good State | 2,500 mcg | United States | Liquids |
| Vitamin B12, 1000 mcg tablet | HLC-Healing Line Corp. | 1,000 mcg | Canada | Tablets |
| B12 2500 mcg | International Vitamin Corporation | 2,500 mcg | United States | Tablets |
| Vitamin B12 | Jamieson Laboratories Ltd./ Nutricorp International | 100 mcg | Canada | Tablets |
| Vitamin B12 1000 mcg Strips | Jamieson Laboratories Ltd./ Nutricorp International | 1,000 mcg | Canada | Other forms |
| Vitamin B12 1200 mcg Timed Release | Jamieson Laboratories Ltd./ Nutricorp International | 1,200 mcg | Canada | Tablets |
| Vitamin B12 250 mcg | Jamieson Laboratories Ltd./ Nutricorp International | 250 mcg | Canada | Tablets |
| Vitamin B12 50 mcg | Jamieson Laboratories Ltd./ Nutricorp International | 50 mcg | Canada | Tablets |
| Methyl B-12 | Jarrow Formulas Inc. | 1,000 mcg | Canada | Lozenges |
| Vegan B12 | Live Conscious | 5,000 mcg | United States | Liquids |
| Vegan B12 | Live Conscious | 5,000 mcg | United States | Liquids |
| LIVEMORE METHYLCOBALAMIN 600MCG TABLET | Livemore | 600 mcg | Malaysia | Tablets |
| NUMCARE CAPSULE | MB NUTRACEUTICALS SDN BHD | 500 mcg | Malaysia | Capsules |
| MyVita Methylcobalamin 500mcg Tablet | MyVita | 508 mcg | Malaysia | Tablets |
| Liposomal Vitamin B12 | NanoNutra | 1,000 mcg | United States | Liquids |
| Sovereign | Natural Immunogenics Corp. DBA Sovereign Naturals | 0.14 mcg | Canada | Liquids |
| Fast Dissolve B-12 1,000 mg Natural Berry Flavor | Nature's Truth | 1,000 mcg | United States | Tablets |
| Fast Dissolve B-12 5,000 mg Natural Berry Flavor | Nature's Truth | 5,000 mcg | United States | Tablets |
| Fast Dissolve B-12 6,000 mcg Natural Berry Flavor | Nature's Truth | 6,000 mcg | United States | Tablets |
| High Potency Vitamin B12 2000 mcg | Natures Plus | 2,000 mcg | United States | Tablets |
| B12 | Nested Naturals | 2,500 mcg | United States | Tablets |
| B12 2,500 mcg | Nested Naturals | 2,500 mcg | United States | Tablets |
| Nested Naturals B12 | Nested Naturals Inc. | 1,000 mcg | Canada | Tablets |
| Nested Naturals Vitamin B12 | Nested Naturals Inc. | 1,000 mcg | Canada | Tablets |
| B12 Liquid | Nestle Canada Inc. dba (Atrium Innovations/Genestra Brands/Pure Encapsulations/Garden of Life Canada/Trophic Canada/SISU/Wobenzym/Bountiful Canada Vitamins/Nature's Bounty/Vital Proteins Canada) | 1,000 mcg | Canada | Liquids |
| Vitamin B12 2,000 mcg | Nutricost | 2,000 mcg | United States | Capsules |
| Quick B12 | NutriStart Vitamin Company Inc. | 1,000 mcg | Canada | Liquids |