Cons

1. Loss of Identity

Loss of Identity Should You Dye Your Hair Back to its Natural Color?Style.com

It might sound silly, but you might feel as though you identify with a particular hair color. For example, if you are a dyed blonde and have been highlighting your hair since high school, you might not feel like you if you change it to brown. Or think Christina Hendricks, an adopted redhead. Can ya imagine her as a, say, blonde?