I'm a fan of companies that are transparent. Pure Encapsulations has very high quality products and is transparent about every thing that goes into their products including their source, or so I thought. I suppose there's a limit to transparency, when there's a profit to be made or for some other unjustified reason.

Patrick, my question was answered with this, so I can't be sure: "Pure Encapsulations R-lipoic acid is not the Geronova brand. Unfortunately, we are not able to disclose suppliers."