what male hair dye melts? Was it some spray on thing? Shoe polish?
maybe it was this
https://www.tresemme.com/us/en/collections/root-touch-up-sprays.html
I dont use hair dye so have no clue what melts
He was not hair dye! It is called camera and lighting make up! It happens to many people, including actors, but they have somone to wipe it off every few minutes! The media are a bunch of idiots!