These are very effective, I have been taking them for a couple years and due to digestive issues I needed sublingual, tiny, quick dissolve under tongue and no issue with taste, they work well. I take them every day.

Good stuff for energy!

I have been using Superior Source microlingual B-12 for at least 8 years. I have never had an issue. I re-ordered a couple of months ago, opened the bottle and put one under my tongue. I had to spit it out! It was disgusting! I thought maybe that particular bottle had gone bad, so I ordered another on April 20th. Nope, same rancid, disgusting taste! These were never what I would call "delicious," but they didn't taste like this! What have you done to them? Now I have to source out a new B-12! VERY disappointed! You have lost a loyal customer!

doubt if the ingredients are true

I don’t like these at all!

Been taking this for about six weeks. Energy is more consistent and I feel less sluggish in the afternoons. Happy with the purchase.