I really love this! I'm a professional hairstylist, and this product is amazing. Compared to other toning shampoos, it leaves less streaking and the color looks beautiful. I highly recommend it :) I purchased all three colors and have been very satisfied using them. I tend to change my hair color often, but the staining isn't severe, so the color fades well even with bleaching. It's better not to use it every day! If you bleach your hair properly and then use the appropriate color shampoo, you'll get even better results! Since it was made by a professional stylist, the quality and effectiveness are definitely top-notch. I think it's a great product for regular people to use easily. Among all the color shampoos I've used, this is my number one. I hope it sells well, and I plan to repurchase when I finish using it!