![Amazon.com: KAL Vitamin B12 Methylcobalamin and Adenosylcobalamin 2000 mcg ActivMelt, B12 Energy Supplements, Metabolism, Nerve, Red Blood Cell Support, High Absorption, Natural Berry, 60 Serv, 60 Micro Tablets : Health & Household Amazon.com: KAL Vitamin B12 Methylcobalamin and Adenosylcobalamin 2000 mcg ActivMelt, B12 Energy Supplements, Metabolism, Nerve, Red Blood Cell Support, High Absorption, Natural Berry, 60 Serv, 60 Micro Tablets : Health & Household](https://m.media-amazon.com/images/I/61i0FyTpq+L.jpg)
Amazon.com: KAL Vitamin B12 Methylcobalamin and Adenosylcobalamin 2000 mcg ActivMelt, B12 Energy Supplements, Metabolism, Nerve, Red Blood Cell Support, High Absorption, Natural Berry, 60 Serv, 60 Micro Tablets : Health & Household
![Amazon.com: Amazon Elements Vitamin B12 Methylcobalamin 5000 mcg - Normal Energy Production and Metabolism, Immune System Support - 2 Month Supply, Berry Flavored Lozenges, 65 Count : Health & Household Amazon.com: Amazon Elements Vitamin B12 Methylcobalamin 5000 mcg - Normal Energy Production and Metabolism, Immune System Support - 2 Month Supply, Berry Flavored Lozenges, 65 Count : Health & Household](https://m.media-amazon.com/images/I/71MDxLeQrOL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Amazon Elements Vitamin B12 Methylcobalamin 5000 mcg - Normal Energy Production and Metabolism, Immune System Support - 2 Month Supply, Berry Flavored Lozenges, 65 Count : Health & Household
![Amazon.com: Pure Encapsulations Methylcobalamin 1,000 mcg | Vitamin B12 Supplement to Support Memory and Nerves* | 180 Capsules : Health & Household Amazon.com: Pure Encapsulations Methylcobalamin 1,000 mcg | Vitamin B12 Supplement to Support Memory and Nerves* | 180 Capsules : Health & Household](https://m.media-amazon.com/images/I/71QItVRbBXL.jpg)
Amazon.com: Pure Encapsulations Methylcobalamin 1,000 mcg | Vitamin B12 Supplement to Support Memory and Nerves* | 180 Capsules : Health & Household
![Amazon.com: Nature's Bounty - Vitamin B12 Methylcobalamin 1000 mcg. - 60 Quick Dissolve Tablets : Health & Household Amazon.com: Nature's Bounty - Vitamin B12 Methylcobalamin 1000 mcg. - 60 Quick Dissolve Tablets : Health & Household](https://m.media-amazon.com/images/I/81-HyqNPOoL.jpg)
Amazon.com: Nature's Bounty - Vitamin B12 Methylcobalamin 1000 mcg. - 60 Quick Dissolve Tablets : Health & Household
Vitamin B12 Methylcobalamin - 5,000 MCG (60 Chewable Tablets) by Natural Factors at the Vitamin Shoppe
![Amazon.com: Natural Factors, Vitamin B12 Methylcobalamin 1000 mcg, Chewable Support for Energy and Immune Health, Vegetarian, 180 tablets, 180 Tablets : Health & Household Amazon.com: Natural Factors, Vitamin B12 Methylcobalamin 1000 mcg, Chewable Support for Energy and Immune Health, Vegetarian, 180 tablets, 180 Tablets : Health & Household](https://m.media-amazon.com/images/S/aplus-media/sc/871d1748-b5f8-4a39-91df-70104caeae1e.__CR0,0,2021,1250_PT0_SX970_V1___.jpg)