Is bleaching your hair a physical or chemical change and why

Bleaching your hair is a chemical change because it is undergoing a process that changes the chemical makeup of the hair. Think of this: if you had a sample of hair from before you bleached it and after you bleached it, they would look completely different from each other, unlike if you had just cut a piece of hair off.

I think its chemical change is because leach has chemicals and other stuff on it so I think its chemical change