I've tried the Lush brand. I love the shampoo, but the conditioner was useless.
If you color your hair, be aware that any added salt in a shampoo will strip the color. Lush brand bar shampoo has salt. They now make a bar shampoo for color treated hair, but I've not tried it.
Lush has a tin you can buy to put the bar shampoo in. I would suggest having them cut the bar shampoo in half or thirds. It REALLY goes a long way. If you are also using the bar conditioner, get that cut in half too. I had them cut the bars small enough to fit both the bar shampoo and the bar conditioner in one tin.
Good luck! elisa