I received a voxbox from influester to try out. I received the shampoo, conditioner and the thickening booster. What liked about this was the ease of use just shampoo and rinse, add some booster, then add conditioner and rinse. The first few times I tried this I really liked the effect on my hair I am not sure if it really added volume but it did make my waves less frizzy my hair looked great and I liked the scent of this product. As I have been using it everyday I was starting to find my hair a different texture but a little harder to manage it was getting to slick.. I felt like I needed to take a break from it and use a differnt shampoo once in a while. I just looked at the website and at most you are only supposed to use this at most twice a week so that would make sense that I have been using it to much. I didn't see this instruction on the bottle. I like the effect this product has on my hair. I am not sure what the price of the booster is. I have seen the shampoo and conditioner in stores at the same price point as other shampoos but suspect the booster will cost more.