This is the one I take. I started at two, and now take one mostly, always at night.
http://www.puritan.com/biotin-421/su...000-mcg-029634
This is because I take the R-lipoic acid stabilized during the day.
When these are gone, I'll be doing the 7,500mcg one at night.
I feel better this high dose. There is no upper limit on biotin.(like B12 shares this trait).
I think I posted about this not too long ago.
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Weezie looking at petunias 8.25.2017
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