I think it's the best relaxer out there. I've used just about all of them and have gone the no lye route before. The last time I used it, I took it with me to a salon and the stylist was complaining because she thought I should use Affirm. But I explained to her that Affirm was too harsh for my fine 4B hair. After she finished, she wanted to know where I bought it from because she said it permed my hair so perfectly but did not strip it. She said my hair looked shinier than she had ever seen it. I used to use this perm when I was in college and I'm finally glad I'm back to it again. It's the healthiest perm for my hair and I have never had an underprocessed or over processed problem. But it does need to be used exactly like the directions say. My stylist was no joke and used a timer.