On 2010-07-15, Derek Turner wrote:

On Wed, 14 Jul 2010 22:39:31 +0200, David in Normandy wrote:


I vaguely recall urea is the main constituent of pee? I'm sure someone
will correct me if I'm wrong.

pedant You're wrong: the main constituent is water! /pedant


Well, I think the precise term is "main *active ingredient*".


(A while back I was looking at creams for dry feet and noticed that a
lot of them bragged about their high urea content. The labels didn't
say where it came from.)