I'll start by saying that I'm a big lush fan, I've been shopping there since I was finally converted over a decade ago and their solid shampoo bars remain a staple in my life. I love how environmentally friendly they are - less packaging means less transport costs and why pay to transport water? - and how long they last. I've had bars that have lasted well over 6 months with washing my hair twice a week. I suffer occasionally from psoriasis - always brought on by stress. When it comes on, my poor scalp itches and weeps and crusts and is generally not a happy bit of my body. This is the only shampoo that I'll use when I get an outbreak. It cleans my hair, important in a shampoo, but it's got cade oil in it which helps massively to control the stress psoriasis and the effects of that. Sure, it's got a distinctive smell, all woody and slightly burnt, but it's no more offensive to my nose than coal tar soaps are and it only lasts for as long as you're washing your hair anyway.