clean: the humble art of zen-cleansing clean: the humble art of zen-cleansing yourself These books embody a mindset as well as how to clean while you avoid harsh chemicals. In clean body, he uses baking soda, lemon, olive oil, salt, and white vinegar as the basis for his all-natural concoctions to clean every part of your body from head to toe. In clean, he uses baking soda, borax, lemon, salt, and white vinegar to avoid all the harsh and harmful chemicals typically found in the products we use to houseclean. Keep these books for yourself or give them as a lovely gift to your favorite environmentally responsible friend!