The one I have is by OMICA organics called super Z Lite. They have a website.
I buy mine from a natural market in Los Angeles and the guy told me if I want to detox faster to double the dosage on the bottle. That is probably why I noticed it so fast. I don't really know all about ph, it is a green liquid clay and feels very alkaline and has no taste.
This is the brand that David Wolfe sells on his site too.