Filters run at the cheapest I've seen about $35 at like Walmart.

As far as a list of low poos containing it, there's not a thread I'm aware of but any low poo you're interested in will list it in the ingredients. Sorry I'm not much help there.

Cosmetology Educator with sensitivities, eczema and Seborrheic Dermatitis.
Ingredients Maven
Products: Free and Clear sulfate free poo and condish, Theraneem Sulfate Free Shampoo/Condish, Unscented SSCEJ, Coconut oil, Camellia oil, Argan oil
Lady Karaan, High Priestess of Hayr Tretements in the Order of Curly Crusaders
Fotki updated 10/12/10 Password: wavy