What are hair extensions?

Hair additions consist of loose hair fiber that's intended for the attachment to the base of one's hair. You can add length, texture and or color, all over or you can add hair extensions in just the right place you would want them.
Hair extensions are either real or synthetic hair attached to your hair to give the illusion of increased volume and length. There are many different methods of hair extensions: Micro-links, Micro Illusions, Fusion, Cold Fusion, Feather extensions and many more. There are also two different categories of hair extensions, all natural hair extensions and fusion methods. Fusion methods, excluding cold fusion, use glue, adhesive or wax to install the hair extension. While on the other hand all natural hair extensions do not damage your hair and support hair growth. You can get heaps of different colors. There are also temporary extensions called clip on extensions that add length but are designed for short term use. People who suffer from hair loss can use certain hair extensions as well, such as Micro Illusions.

http://extensionsofu.hubpages.com/hub/A-Invisible-Hair-Extension-For-Alopecia-and-Balding