I have tried this, using clay put in herb infusion, I think I used nettle, horsetail. and added some essential oils. it sorta worked. I was trying to make a version of terresentials clay shampoo, which I like. my version wasn't as good though and I couldn't make up a bottle ahead of time because it went bad after a few days. but used at the time I made it, it was okay... I'd have to experiment a bit more to get it right.