I have a re-print of an 19th century book with recipes for all sorts of
things. There are a few for toothpowder as well.
When I finish the load of toothpaste we still have in stock I will start
making our own powder and try to avoid the substances that are in paste.

Anyone interested in the recipe?
Some involve roseoil and sandelwoodoil, others are less fancy with
something called violetroot.  Will have to find out what that is at all
before being able to translate it.
This book contains the weirdest things, some even dangerous.  The
ingredients for toothpowder seem allright but if anyone notices a
'baddy' I'm sure they'll let me know ;-)
How to clean marble statues, how to make paint for humid houses, how to
make wood inflammable, that sort of things.  A real treasure to read
this little book.

Christy