“I use this every time I wash my hair. My scalp is severely irritated by the Lauryl/Laureth Sulfates used in most shampoos. This is the only product that both foams properly and provides relief for the ongoing irritation. I would recommend this to anyone with a sensitive scalp/dandruff and would encourage even those who don't think they are chemical-intolerant to try this. It is more expensive than what is on the shelves at the supermarket but foams up so much that it actually lasts a lot longer than standard shampoos”