I have previously used Redken's bonding mask, but since I am now a student, I can no longer afford it. I tried this one without any major expectations. BUT! I actually think this one beats Redken's. You get an enormous amount of product for little money. I really recommend this mask. My hair has been so smooth since I started using it. I will definitely continue to buy it. It would have gotten 5 stars if I didn't think the scent isn't for me. It doesn't smell bad or anything, but also not good like I want hair care to be.