If you've ever gotten your hair colored at a salon, you've probably noticed that even after your hairdresser has washed and colored your mane, they still apply yet another round of shampoo and conditioner to it for good measure. And if you're as curious as we are, you've probably wondered why this is the case.
"Washing your hair, either before or after color in the salon in New York state is the law," explains Allison Gandolfo, celebrity hairstylist and designer colorist at the Zahir Ziani Salon. "It ensures you, the client, receive a thorough hair wash while getting a color service."
