Funny thing with B-12 here in canada ... in the eastern provinces like nova scotia for instance , the doctors dole out B-12 shots to the elderly through the winter months like it's candy .... anyone walking into a doctors office complaining of feeling a bit blue and lack of energy gets a free hypo in the arse .
Yet out west where i live , the fricken doctors would'nt give you a shot of B-12 even on your death bed .... weird eh ?
I've used it before and found somewhat noticible improvement in energy levels but nothing thats going to make you go holy fuck !!! this is the stuff .
As with any vit .. it's going to show more benifits to those who already show a deficiancy through there diet ... as with anything , give it a shot and see how it works for you .
Friend of mine goes through the roof on klynoselen and i see no benifit from it at all so goes back to what works for you is whats important