i havent used b6 but i do use tang kwei gin. i take it from the first day of AF and I stop right before ovulaton. I take wild yam after I have ovulated and stop after I get AF. I also take vitex and I take that throughout the whole cycle. I also take maca which is not considered an herb but an actual food staple and I take that throughout the whole month too. I dont know what has worked but my cycles are regular now. :)
I haven't tried it. I know lots of posters said the b6 did work, it just takes a couple of cycles to see the results.