Grow your own shampoo.
Maiden Hair Fern. Most people have one hanging on a patio or in their bathroom.
Buy an attractive looking glass bottle with a cork lid.
Boil up some water, allow to cool.
Add 5 to 7 sprigs of your maiden hair plant to the bottlepour water into the bottle and allow to sit for a couple of hours. then it's ready to wash your hair with ...................
(and yes it does lather.)
Use maiden hair fern for blonde hair and Rosemary plant for brown hair.
You can scent it with a non oil based scent if you want.