I do a lot to my own hair and most of that is bleach work, so I need a product that will help repair. The Extreme line is my go to when I am bleaching. It also works well for damaged and fine hair. A lot of higher protein products are VERY heavy. I have tried a lot, because despite having super damaged hair, I also was "blessed" with very fine hair. So most left my hair weighted down. It would just look heavy and flat. The Extreme conditioner leaves it with a healthy shine, but without the weight. I can still get lift and volume out of my hair after using this product. It is definitely a better deal to get it in the larger size than if you were buying the smaller size. Effectiveness I don't think I could keep my hair from breaking without this conditioner. I put my hair through a lot of abuse and this always helps get my hair back to healthy. Scent It isn't over powering and does not linger to long after. It's a very light scent.