Ok, as many probably know, B12 is a fantabulous energy booster! The problem though is that the most potent form is available by injection only. See, B12 is hard to absorb in sufficient quantities, unless you are eating red meat regularly...and even supplementation is difficult since the digestion process doesn't allow full absorption of what you eat - so obviously, B12 caplets are not cutting it as much as we thought. Now, all the science behind B12 is here, so I simply won't restate it.
But, I do like this product. Its easy to carry along. It has a pleasant taste. Its easy to take. It doesn't give you a jumpy reaction, but keeps your energy level throughout a long period. Its natural.
Just my two cents....for those fighting lethargy all the time :)