There have been many posts talking about various sub-lingual B12 products. Obviously, the very word sub-lingual means that the lozenge (or whatever you want to call it) is placed under the tongue.
Some years ago, I had some Prochlorperazine 3 mg Buccal Tablets. Rather than under the tongue, the instructions state: Place the tablet high up along your top gum, under the upper lip either side of your mouth as indicated above.
When I decided to try taking B12, I almost automatically followed the same instruction as for Prochlorperazine - only later thinking that this is obviously not what is meant.
Does anyone have any evidence, or even just opinion, on whether buccal is as good as sub-lingual, or even if it might be better? Certainly I find it almost impossible to keep a lozenge sub-lingual for as long as they need.