Hey Lucid one. What is neurotoxicity
And a vitamin absorbs that fast? Cool. What about liquid vitamins - faster?[/b]
Sorry Howetzer.. I missed these questions before.

The following is a link to a study on the Neurotoxicty of B-6. I would skip ahead to the Recommendations section first. Note: This file is in PDF format and requires Adobe Acrobat to read it.

http://europa.eu.int/comm/food/fs/sc/scf/out80c_en.pdf

As for the absorbtion rate, I do not know what the specific times of absorbtion are for the B vitamins. I do know that there is a major affect when I take one before bed.

~LucidOne