Hair color is the phenotypic modification of genes related to hair that shows noticeable variations within humans. Generally, hair colors are classified into dark and light in which the former is ...

Kim Zolciak-Biermann keeps spilling her hair secrets. First, the wig fanatic posted a rare selfie this month showing her real hair rather the elaborate hair pieces she's been known for over the years.

Moreover, the now-brunette also had a “blonde-ification” moment back in Season 2 (though it was short-lived). Katie even spoke about the look in 2015 with StyleCaster, noting that she wanted to “be a ...