B12 Sublingual has been highly researched and Daily sublingual ingestion of Vitamin B12 at 2,500 mcg is often considered a therapeutic level of the supplement. After the first day of taking them, I felt energized and definitely more alert! They have a cherry flavor and dissolve in about 30 seconds!
Give it a try! I promise you will feel it! I bought mine at Wal-Mart for $5.00!