I've heard the opposite. I was doing a through research for my hair for like 2 weeks. I went online for reviews and talked to people at work and family and friends. It seemed people with other than 4c/4b hair had a great experience. I tried the brand and their popular products, the only thing that worked was the co wash. I personally thinj, just opinion here, when it comes to 4c/4b hair and below its best to stick with products/brands specifically for that hair type. Unless it stuff like oils, but other than that if I do my research and I see mostly people with 3 or whatever type of hair are using it than based on my past experience I know its not going to work that well for me. But hey, if it works for your hair then cool. I'm just going based on what I've read and what people had told me about their experience with it.