Thanks sor emailing Dr. S about it.

I did ask him how thye got it so white (it is a bit off-white, Jinxy )When I spoke to Wisdom Herbs the rep. said that they do use alcohol in the process to extract it, which is burned off and the off-white color is how it comes out naturally. He didn't mention citric acid, but I didn't ask him specificly about it.

I'm now interested in what Dr. S says.