Okay, I spent 1.5 hours with the cornmeal under the shower cap.

A longtime (40 yrs) friend called and I told her what I was doing. There was a long silence.

"I don't think it was recommended for people. That's what they use on Old English Sheepdogs to fluff the coat and make it stand out for shows."

Oh. Maybe that was where I heard it. Anyway, on to the evaluation.

[snip]

It was messy, so I would recommend doing it outdoors.
But since I had to take a shower anyway, I washed my hair the regular way.
Score: probably about 6 out of 10 for my hair, YMMV.
Sue