Hair dye is how you spell it.
Blond hair.
it wasn't a spell but rather a large amount of Sleekeazy's Hair Potion
Hair is the correct spelling
The word is spelled straight in "straight hair".
"Hare", if you mean the rabbit
The usual term (though colloquial) is "highlighted hair" for lightened hair.
my aunt has brown hair
That is HAIRDO (a hairstyle).
a the spell box
you can use a hair die and die it
A person who has no hair is typically spelled as "bald."
use peroxide on it