This is a fantastic, very mild shampoo that works great for my thick, but fine, hair. I especially liked it because it's so gentle. I'm not 100% sure that it is sulfate-free, so if you're very curly, dry, or porous this might not be a go-to product for you. But in my experience it was very gentle and did not strip or dry out my hair. In fact, my hair was so happy after I used this sample-all shiny and bouncy.
Just for reference, I rarely heat-style and do not color my hair at all, and I'm a curly/wavy myself (2b-3a) and don't shampoo every day. I followed up the shampoo sample with the included conditioner too, if that helps.