It's best if you do,but they will take walk-ins,you may hava a wait, scheduled clients may come first.
I usually just walk in, and if I have to wait, it's usually not long.
You do not need an appt. But it's recommended if you would like to come in on a Saturday. (I work at mezzios)
I just went in yesterday for a missions you can call them on the phone and see if they have a wait time previous before coming in
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