Convenient Heart Support: Superior Source NO SHOT Advanced B-12 is formulated to support heart health and focus, aiding overall health Vitamin B12 for Energy Support: Vitamin B12 methylcobalamin supports healthy energy throughout the day, aiding vitality Bioavailable Supplement: These vitamin B12 tablets dissolve on or under the tongue, utilizing a MicroLingual delivery system delivery to support quick availability Vitamin Supplement with High Potency: This vitamin supplement contains 2,000 mcg of vitamin B12 supplement with methylcobalamin and adenosylcobalamin About Us: Superior Source has been formulating sublingual vitamins since 1998 in our family-owned manufacturing facility