Vitamin C

Where would I purchase a Vitamin C tablet to perform a stain test? Would I ask for Vitamin C or Ascorbic Acid?

Thanks!

um, you can get vitamin C tablets at any pharmacy or grocery store that I could think of in the continental US ;) I found powdered C or ascorbic acid at General Nutrition Center.

Now for my question: they offer buffered or un-buffered.... just pick whichever is less expensive, would ya say?

Thanks

I would get the unbuffered. You want the pH to drop when doing a stain treatment.