After getting highlights, I was recommended to use this. I was a bit thrown off by the price, but I took the plunge and got it anyway. I was definitely not disappointed. Not only did it keep away any copper or yellow times, but it also keeps my hair soft and hydrated without making it greasy. I tend to leave mine in for a bit longer than recommended and it gives it a pretty ashy tone. It also lasts ages, so it's definitely worth the price.