This is a great shampoo for people like myself with straight, fine hair but a lot of it. I can actually run my fingers through my hair while washing without any tangling or breakage! I have seen a noticeable reduction in the amount of frizz in my hair after I air-dry it, and it is more manageable to style. It does not seem to weigh my hair down, dry it out, or make it greasy at all, and I've noticed a reduction in breakage and fallout since I began using it. I like that it's color-safe as well; I go to the salon every 6-8 weeks to get my hair colored a dark brunette to add vibrancy to my natural color, and this has not stripped or faded my color at all. I would repurchase this one again, especially if the Gemstone shampoo & conditioner were out of stock (I like the scent of those a bit better).