They have transformed the lives of females who suffer from varying degrees of thinning hair brought on by conditions like alopecia, trichotillomania, genetics, stress and post-operative trauma. The main advantage of synthetic tresses are that it is much less expensive than human hair and it's also available in many different colors and textures. There are more things to consider when fitting extensions to short hair but it is not possible. com how the fiber extensions tend not to damage hair and can even help the condition of hair.