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    Sine Qua Non Salons

    4.4 (263 reviews)
    Closed 8:30 am - 4:30 pm

    By appointment only

    Updated over 3 months ago

    Services - Sine Qua Non Salons

    Haircut

    Eyebrow services

    Waxing

    Sine Qua Non Salons Photos

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    Recommended Reviews - Sine Qua Non Salons

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    Reviews With Photos

    Before
    Saya H.

    Visited the West Town location for the first time and had a lovely experience. Everyone was very friendly and the space is inviting. From being offered a drink upon arrival to the warmth of the stylist (Clare) to the ease of booking online to the ease of tipping, thumbs up! Very happy with my new cut, will definitely be back and refer others!

    Side view!
    Ian M.

    I've been getting my hair cut here for a couple years now. My man Glenn is truly a sculptor of classy and refined looks. He knows too well how to let your hair do the talking. I've never felt more confident than I have when leaving Sine Qua Non. I enjoy trying all kinds of cuts and am so happy every time I leave this place. There is also an amazing selection of products available. The staff here are amazing and scheduling is very easy.

    My hair before.. I never asked for shortened layers, in fact she told me she wasn't going to touch the length of my layers.

    I'm sure the owner will be replying with a condescending message, but let me start by saying I am not one to complain of services. The appointment started with me changing my schedule and coming in later so the stylist, Stacias, could have another client come before me. I told her I was unhappy with how choppy my layers were, and that I wanted everything rounded out and connected. I told her my hair looked thinner because it was so layered and that I wanted it to look fuller. I was left with a haircut that looked disconnected and even choppier than when I went in. Before I left I tried asking the stylist to round out the bottom, but she told me not to worry about it and that it looked blunt because she blow dried it straight.. I left, went in the car to facetime my friend, and the first thing he said was wth did they do to your hair, so I know i'm not crazy. I went back in after about five minutes, but my stylist had already left. Someone else tried to help, but they had another client coming in in a few minutes. Ended up having to take off 2 more inches. Worst part is I just spent $600 getting my hair colored and now $120 for a cut I absolutely hate. I have messaged back and forth with the manager. I already tried going in to fix my hair same day, and I do not want to waste my time going in again and having it chopped up even more. Refused to give me a refund on a horrible $100 hair cut.. which I don't mind paying & thought paying a higher price would mean a nice haircut.. I would have better results at a cheaper place. If my hair was fixable I would go in, but look how short the stylist made my front pieces when I had asked for the exact opposite..

    Inna E.

    Just avoid this salon if you want a root touch-up while having highlights; otherwise, beware of the result you could get (check the photo taken 12 hours after the appointment; I wish I made the same one for "before", as even growing natural hair looked nicer than this so-called professional touch-up). I've got a very disappointing result from one of the top stylists (Carrie) who either didn't pick the right color for the roots or kept the dye on before washing it off for too long + didn't do a good job with blending it in using a toner (according to my 2 go-to colorists who saw the photos of the outcome but whose schedule for the summer I couldn't match because of business trips - huge mistake). I addressed the issue very politely with the stylist but was told the only option I should have used was more highlights (I was never told the color would look patchy otherwise). On top of that, the owner told me " this was exactly the color/formula I wanted " (as if it's me picking up the right tube from the shelf and following the processing requirements during the appointment) and " the salon doesn't offer free highlights ". I have never asked for a free service, in the first place, but I did expect an acceptable result from a $150+ service booked 7 weeks in advance. Also, I would have considered other options if I was warned about the possible outcome timely. Finally, this was the first time in my life I heard that highlights should be redone more than once per 4-6 months to keep the hair color visually appealing (full highlights were done at the end of April, and the described visit to Sine happened in late August). All the other stylists managed to do root touch-ups without creating a sharp contrast between the roots and the ends / middle section of the hair - not to mention that if they were unsure of the result for any reason, they communicated concerns and potential solutions proactively before starting to do their work, not post-factum. Overall, the customer service standards are highly questionable, if not non-existing, not to mention the photo indicates the quality of work deemed fully acceptable / normal by the owner. In case the stylist makes a mistake or just doesn't deliver (and admits the result looks strange in person), it will be the client's problem, and even a simple apology would be too much to ask for. " We are fully booked to try to do anything else" effectively means " we have other clients, and cannot care less about you or your satisfaction with the service ". " Pay for more services if you want to get it right " is a great piece of advice to be given to a clearly dissatisfied client at a top-ranked salon - I'll definitely follow it elsewhere.

    My AMAZING hair!
    Alexandra D.

    I just had the greatest experience at Sine Qua Non Salons with Valerie! She took the time to discuss my hair in great detail and what she was going to do with it. I couldn't believe her AMAZING technique and it was SO fun chatting with her throughout the whole process. I would 100%, without a doubt, absolutely recommend this salon and Valerie! The BEST experience!

    After my first color (baby highlights) and cut with no toner needed. Grew out beautifully with no touch ups.
    Sarah B.

    I have been with a few stylists at this location and they are all amazing, but if you are blonde or trying to go blonde you must see Lauren! She is an incredible colorist who truly cares about the integrity of your hair. I go in once a year to go a bit blonder and my hair grows out beautifully in between visits. She also gives great haircuts in between colors and I always leave super happy with my hair. She takes her time with you and recommends the best products. You cannot go wrong with Lauren or Sine in general. Top notch service, will not go anywhere else.

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    1 month ago

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    9 days ago

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    3 years ago

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    Laura B.

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    2 years ago

    River was great, highly recommend! she knew exactly how to cut and shape my curly hair!

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    3 years ago

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    7 years ago

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    3 years ago

    Wow, so awesome! Lo was Incredible & got A Perfect Haircut & just comfortable all around --Thanks so much -- such a great salon!

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    4 years ago

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    Page 1 of 7

    Ask the Community - Sine Qua Non Salons

    Review Highlights - Sine Qua Non Salons

    I've been seeing Carrie for my cut and color/highlights, and I come out happy every single time.

    Mentioned in 28 reviews

    Read more highlights

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    European Wax Center

    European Wax Center

    4.1(177 reviews)
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    I was a little nervous heading in because I've never had my eyebrows done before, but Senda could…read morenot have done a better job. The way she did my eyebrows was PERFECT. It was like she just knew what I needed and wanted. She was super friendly and fun to talk to. Will definitely be coming back.

    I have been a customer of this specific location for years, largely because of the terrific care…read moreI've received from all of the estheticians. Once I found my specific esthetician, she became the sole reason I continued to stay a customer. I have been on a consistent schedule with her for a long time and know exactly which dates she is available and what hours she works. I'm not sure what has happened with EWC over the last two months, but none of the esthetician schedules make sense anymore. They seem to be working completely different days and hours every single week, and there doesn't even appear to be a consistent pattern. Someone may work an entire shift twice one week, four times the next week, and then maybe only once the following week. I'm someone who likes to book my appointments three months in advance with a specific esthetician because I do not work a regular Monday through Friday schedule. I need to plan ahead, and I have always been able to do that with EWC. Unfortunately, I'm no longer able to consistently book with the same person because their schedules are constantly changing. EWC, whatever this new scheduling change is, it's not working. If the scheduling doesn't change soon, I will likely be leaving once I use the remainder of my passes because I can no longer reliably book my services with the esthetician I prefer. I really don't think this is a smart business move. I understand that schedules and staffing need to change, but completely removing consistency makes it very difficult for loyal customers to continue coming back. I think you will likely lose far more clientele than just myself if this continues. Once again, all of the estheticians are wonderful, and this review is not a reflection of the quality of their work or the care they provide. My concern is specifically with the inconsistency in how staff are being scheduled each week. The previous scheduling structure made it easy for loyal customers to plan ahead and stay with their preferred esthetician, and that consistency seems to have been completely lost. EWC Management/Corporate, if you have any questions feel free to contact me directly.

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    Sine Qua Non Salons - hair - Updated September 2026

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