I bought this product because I was looking for some thickening products and because I've heard of this brand before, I thought I'd give them a try. I was immediately disappointed because the inside of my jar literally looks like half of the product was missing. So that's an issue I need to take up with Birchbox. Aside from that, it has a very pleasant smell and a thick, creamy texture. I worked it into my roots easily and dried my hair. I did notice that my hair felt slightly fuller and looked smooth, but didn't weigh my hair down. Next time I'd like to try to use more product and see what happens. My only worry is that, with my fine hair, too much product will have an opposite effect. But if you have normal or thicker hair, this product would be a good buy to add more volume while also smoothing out your strands!