There's a small chance you could just walk in and be seen, but not likely. Appointments are your better option
Yes, an appointment is highly recommended. You can make one online or just call.
I've only had success with a walk in once and that was at the Cameron Village location. This was about 2 years ago. Since then I've always booked appointments. I have observed mulitple occasions where walk ins are allowed to wait and see but this often doesn't work out. I would strongly advise an appointment. Further I'd recommend Kris if needing anything that involves any semblance of a fade.
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