Beyoncé’s colorist, Rita Hazan, on her favorite haircare, red lipstick and black eyeliner

NYC-based colorist Rita Hazan has been entrusted with transforming some of the biggest A-listers with the most iconic hair, including Mariah Carey, Jennifer Lopez, Madonna and the Queen B herself, Beyoncé (who Hazan has taken from sun-washed and teddy bear blonde to the richest brunette hues over the last 11 years). “Beyoncé is super adventurous...