I've experimented with various different kinds of hair shampoo in the past with a wide range of brands.
Aussie's moist shampoo is the most recent brand I've been trying as a replacement for my previous shampoo choice. Using it in the shower for the past week or so, I was able to notice the shampoo cleansing my hair down to the root of my scalp, removing any oil or greasiness in the process. This resulted in fresh and soft straight hair that is full of volume and shine.