In short, I use all Natural Walnut Oil to paint with and clean my brushes. I have been using M. Graham for almost 15 years and have enjoyed all the benefits as have my students. In a time when health counts even a little more, I recommend these paints.
I am reposting an old post here: https://darylurig.com/blog/2014/01/16/going-green-%e2%80%93-healthy-painting/
It is about using M. Graham Oil paints: