* Copper: This is the most common material for electrical wires due to its excellent conductivity. It's used for the hot wire which carries the electrical current to the heating element.

* Copper or Nickel-Chrome: The neutral wire is often also made of copper, but sometimes it can be made from nickel-chrome alloy, especially in older hairdryers. This is because nickel-chrome has a higher resistance than copper, which can help to reduce the amount of current flowing through the wire.

Important note:

* It's always best to consult the specific product manual or manufacturer information for the exact materials used in your hairdryer.

* Never attempt to disassemble or modify the electrical components of a hairdryer yourself. This can be dangerous and could result in injury or death.