You cannot use Coconut oil in place of Coco Glucoside. While some surfactants are derived from coconut, they are not the same as coconut oil. Therefore, using this oil in its regular form won't provide effective cleansing results and can leave your hair feeling greasy or weighed down. Since, essentially you will just be applying a load of oil to your hair. If you're unable to find coco glucoside, you can substitute either decyl glucoside or lauryl glucoside!