I have to have ordered the shampoo to ensure proper care for my extension! The extension is not in it and I wanted to test the shampoo out! It is intended for the natural hair for human hair extension and synthetic hair ... my hair is curly and often straw-like! The shampoo really good and I was surprised at how shiny and silky feel my hair! And slept one night and my Harre still look fabulous had not even spray or make foam in the hair ... have so many shampoos tested and that from now on Mine !!!