We are familiar to shampoo. We use it to remove dirt from our hair. There are various kind of shampoo in the world. our hair hair has a complex internal structure consisting of many layers including, from outside in, the cuticle, the cortex and the medulla, all bound by the cell membrane complex.We are having trouble what kind of shampoo we should use. I suggest to use natural organic shampoo with mineral and protein for hair which is side affect free.