Hair Quickie: Having hair that’s flowing and down-to-there is a very glamorous look, but you have to keep in mind what it could be doing to your scalp. For most women extensions that are between 26″-30″ (inches) can be worn safely. Tresses that are longer, thanks to the laws of gravity can begin to pull on your own strands and put unnecessary weight on your scalp. Such continuous damage after awhile may not be able to be reversed. Extensions when properly installed and maintained can result in a healthier head of hair. Be sure to watch the length in order to enjoy these benefits.