Permanent hair extensions are extensions that get attached to your own hair, as close as possible to the scalp, in a permanentway, so that you cannot remove it without professional assistance.
Hair extensions will leave your hair damaged, broken, and extremely thin. … Other permanent hair extensions may cause some damage to your hair over a long period of time, whereas temporary methods like clip-ins are worn on a selective basis and allow your hair to ‘breathe’ and rest when the extensions aren’t being worn.(luxyhair.com)
Benita David