It seems like you're using the same mud as I did.
The red clay powder or the white clay powder.
Difficult choice. Both feel nice but the left one gives more colour of course.
Although in my experience, it can stain a little bit. After showering your skin is still a bit brownish. (this is not noticable on some guys

)
But hey, that's good for people how like to have a tan!
Serious now, this is not much of a problem. After a couple of showers it's gone so that you're not looking like an indian for the rest of your live. No offense to indians.
So, for me, both are fine.
Perhaps a mixture?
Oh, and Dave, do you know more about that session that I requested for next week?
Erik