It works.
I gave this to my sister to try- she naturally has dark brown hair. She decided to go blond... rather than have a professional stylist do it, she did it herself (facepalm... shaking head as I write this... sigh...). Needless to say, she needed help... instead of being blond, she was more of an orange.... more like a calico cat. Not knowing that there was a shampoo/conditioner to help with brassy hair... I also grabbed the shampoo.  She has been using both as directed for a few weeks now and it has improved the color greatly. The conditioner left her hair soft and manageable and it has a light pleasant smell. More importantly, it is removing the brassy tones from her hair.
Rating: 5 stars