Some is from the natural oils your skin releases, some is from airborne dust that gets trapped in the hair and some is from all the surfaces that your hair rubs up against during the day.
It does not matter. Hair is hair
Dirty blonde is darker than normal blone. Sometimes, dirty blondes have a little burnette in their hair.
Lice prefer dirty hair than clean hair it's proven to be a scientific fact
mabeyno your Hair can't grow if you have a dirty or damaged scalp . Yes. If your hair is dirty, that means that is oily. Which is good for your scalp, therefore, causing your hair to grow faster. If your head is not oily, that means that it will not grow as fast
he has dirty brown hair
NO
dirty
i have dirty blond hair and every time i get my hair highlighted i get a auburn and a platum blond and it always truns out really pretty
She washed her hair every day. His hair was long and dirty.
Ann's dirty hair, after she washed her hair, is now clean. Or - Ann's dirty hair, after a good shampooing, is now clean.
Oils from your scalps pores
yes