The ends of synthetic dreads are likely to lose their original form of wear time - unlike natural hair, synthetic hair eventually becomes dreads itself. To make them smooth again, you can use curling iron, but only with a damp cloth so as not to melt the plastic hair. Or steamer without damp cloth. You can do it while still wearing it, the main thing is to be careful not to get burned. Below is a link to the video, where I show how to straighten the ends and what else you can do with them. @deadcatdreads_