Layering halos is a great way to achieve a fuller look. When layering halos, be sure to blend the halo with your own hair before installing the next one. This will help to prevent your hair from looking weighed down. Once you've layered the halos, you can style them as you would any other type of hair extension. curled or straightened, you can create any look you want. So go ahead and layer those halos for a fuller, more fabulous look.