My hair is thick but also brittle. I love this product. It made my hair look and feel soft. It brought back shine and volume. I think it would do great for thin brittle hair. I could see a difference with the first use. I also used the conditioner and elixir. Love it!!
This product definitely helps hair to look more thick and less brittle. Since it is sulfate free, it shouldn't cause your hair to fall out, but there is no guarantee that it will stop your hair from falling out.