This smelled great, didn't make my hair sticky or nasty, added volume, and added a little shine. I do feel like it also reduced breakage. However, it didn't do that much for my frizz. It sort of tamed my flyaways, but I still had loads of noticeable/touchable frizz all around my head. Also, it made my hair feel thicker which was nice, except on hot/humid days when the serum made it felt like no air could move through, and I often put it up. My hair also tangled a little easier throughout the day too when I used this. The smell and the shine were definitely worth me using all of the sample, but I didn't quite like it enough to buy it.