This product is amazing, my co-worker and myself are growing our hair out at the same time. One day I realized that her hair looked extremely longer from one week to the next. She told me she has been using this shampoo. It obviously delivers volume and complete scalp nourishment to help hair grow. I have been using this product the shampoo and conditioner for the last month and I have found that my hair has been growing faster too; not to mention, it is super soft, smooth, and manageable. My hair has lots of body and is very flouncy too. I do not color treat my hair anymore. My natural hair color is a light-medium brown. I don't know what it is about this line of shampoo and conditioner, but it makes my natural hair color just pop!