However, every single wig we've experimented on containing Toyokalon (and comparable Japanese fibers) has held up and taken heat-straightening restyling without any damage to the strands. In order to get the results, I use a regular human-hair ceramic flat iron on setting 1 and clamp down briefly, repeatedly overlapping the heated areas.
| This black wig came with the long back strands perfectly straight already, but for some reason, the mid-length sections were curled inward originally. The editing is shown in the right of the picture.|
| Here's a more extreme example. The side bangs here were originally as tightly curled as the back of the wig.|
| This is the wig I mutilated for Riku. (The original state is shown below.) Amongst other adjustments, straightening out the waves worked out well, and I still had a thick wig with good lift to spike the right way.|