Sundown Dissolvable Vitamin B12 is a convenient, great-tasting way to support nervous system and energy metabolism health. (2) Vitamin B12 aids in the normal development and regeneration of red blood cells and contributes to the health of your heart and circulatory system. (2) Each serving of this one-per-day B12 supplement contains 600 mcg of Vitamin B12. For adults, take one (1) B12 microlozenge daily, preferably with a meal. Place the cherry flavored microlozenge under your tongue until fully dissolved and then swallow. At Sundown, we believe in living clean (1)…and being transparent. That's why you won't find genetically modified ingredients, gluten, dairy, or artificial flavors in any of our products.