Size:2 bottleNature's Bounty B-12 sublingual microlozenges aid in heart and circulatory wellness as well as contribute to the proper metabolic functioning and nervous system health. With an all-natural cherry flavor, the highly concentrated microlozenges dissolve right under your tongue before being swallowed for fast-acting support. What makes Nature’s Bounty B-12 methylcobalamin so special? Methylcobalamin is the advanced, active form of vitamin B-12 that is preconverted. Traditional B-12 cobalamin form supplements are readily absorbed into the body, and are then converted to a coenzyme form, known as methylcobalamin, to provide its many health benefits.* Nature’s Bounty B-12 methylcobalamin active form provides support for energy, heart and nervous system health.