I would also like to add that since you take B5 and lipoic acid, that you take the biotin at a different time of day.
Biotin shares the transporters for absorption with the other two, and may work better if separated. (it is a similar thing with tryptophan and other amino acids which compete at the blood brain barrier for absorption-- taking tryptophan alone away from protein, is therefore more successful-- for those using it.).
Biotin also may be needed in high amounts. 5-10mg a day.
I have some biotin papers now on the Supplement thread:
http://neurotalk.psychcentral.com/post883889-166.html
Supplements and damaged ganglia do not appear in studies.
So it is unclear if they would be helpful:
I have found only one reference to an OTC supplement so far:
http://www.ncbi.nlm.nih.gov/pubmed/15293274
I'd use methylfolate(active form) if you decide to try this.
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Weezie looking at petunias 8.25.2017
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