Can immigrants dye their hair?

You can dye it. Don't listen to the above nonsense. You don't even know who is in charge of checking the documents. It is the border inspection agency that checks the entry and exit personnel. When I went abroad, I was also the XX Immigration Bureau, XX Immigration Bureau, etc. Not to mention going abroad is customs. You are speechless. . . . .

The comparison of witness mainly depends on your facial features and height (there is a certificate indicating your height). As for your hair color, it has nothing to do with you.