It is easy to get bored with the same old chin-length hair style or feel frustrated with thin stringy hair. With extensions you can now take control and make your hair longer and fuller. Hair extensions are strands of artificial or real (human) hair, which are attached to your own growing hair. Hair stylists can use various methods to attach hair extensions. The new strands of hair are either glued to growing hair using keratin adhesive or they are attached through cold fusion via keratin-based adhesive using ultrasound. This takes quite a bit of time. The process takes less time when several small strands of hair are attached using air pressure or a laser cold fusion method.
Of course, the natural hair keeps growing and the extensions have to be detached and reattached near the roots after a while. Admittedly, that is quite an elaborate process. Unfortunately, this dream of long, full hair comes at a price.