Whether you use your hair straightening iron occasionally or regularly, it will eventually develop a film of residue, resulting from the hair products you use as well as natural oils and dirt in your hair. It is important to clean the ceramic plates in your hair straightener in order for it to work more efficiently and because the build-up can damage your hair by snagging and pulling.
Fortunately, learning how to clean ceramic plates on a straightener is quite simple. First, make sure the flat iron is unplugged and cool. Then, either spray the ceramic plates with a cleaner designed specifically for thermal hairstyling tools (available at beauty supply stores and most drugstores), or you can saturate a piece of cotton with rubbing alcohol or nail polish remover and let it soak for a minute or so. Rub the plates vigorously with either cotton or a clean cloth. Do not use strong solvents or scrub with anything abrasive, as you may damage the plates.
Clean any small crevices with a cotton swab and/or an orange stick covered with cotton or soft cloth, which is how to clean the hair off the hair straightener that may have gotten stuck as well as other dirt particles. Finally, wipe the entire flat iron with a clean, damp towel to remove any chemicals used during cleaning.
Repeat this process after each use of your flat iron or at the very least when you start seeing a residue building up.