Xanthun vs. Guar Gum

Xanthun vs. Guar Gum PROOF POSITIVE THAT I AM LOSING MY MIND and have been blogging too long:

Here is the other post I did on this same exact topic and not that long ago either.

Again, what are they and how do they compare?

Guar Gum? Xanthun Gum? Price is the main point for me. Buy the cheap one.