K.J.
Hello J.,
Not sure if you are still looking for input, but if you are close to Lincoln Park I would recommend checking out the Aveda Institute on Clark Street. When I was a child my mother always took my sister and I to the Aveda Institute in Minneapolis, and I have gone to the Chicago location for both hair color, as well as hair and makeup for my wedding (they did my entire bridal party's hair/makeup.)
Like the Arlington Academy in Buffalo Grove, which another mom recommended, the work at the Aveda Institute is overseen by instructors and the students do not touch your hair until they consult with you and their teacher. They also require a 24 hour skin test for allergies.
You can look them up @ http://www.avedainstitutes.com/