Cosi Bella Day Spa

Martinez, United States

4.5

20 reviews

Accepts Credit Cards
By Appointment Only

Contacts

QR code, vCard

Telephone:
+1 925-957-6443
Address:
514 Ferry St, Martinez, CA, 94553
Nearby public transportation stops & stations:
660 ftMartinez
Categories:
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Bussiness info

Accepts Credit Cards
Yes
Accepts Bitcoin
No
Parking
Street
Bike Parking
Yes
Wheelchair Accessible
Yes
By Appointment Only
Yes
Accepts Insurance
No

Today

Today –
Local time (Martinez) 01:35 Monday, 23 June 2025

Business hours

Monday –
Tuesday 10:00 am – 8:00 pm
Wednesday 10:00 am – 8:00 pm
Thursday 10:00 am – 8:00 pm
Friday 10:00 am – 8:00 pm
Saturday 9:00 am – 7:00 pm
Sunday –

Description

Specialties

Ombré, Highlights, Perms, Cuts, Men’s Cuts, Facials, Waxing, Spray Tanning, Massage, Nails, Shellac/​Gelish Polish, and Bridal Makeup Application.

History

Established in 2011.

Since December 2011, Mary Mackenzie opened this facility located in beautiful downtown Martinez where you hear the church bells ring and the trains whistle by. She has provided an environment for entrepreneurs to be successful running their own businesses within the salon and for guests to feel rejuvenated. They are all experienced in their field of expertise and strive to deliver on their guests expectations. Hours vary by technician so please call to book an appointment. It’s worth the wait! We are all proud to work in such a great location and look forward to many more years of service to all our guests.

Meet the Business Owner

Mary M.

Business Owner

Mary and John Mackenzie opened Cosi Bella Dec. 1, 2011, after embarking on their own amazing journey, being married two years ago. Mary has been in the Hair industry for 25 Years, starting at Yankee Clipper in downtown Martinez, and then to Mary owning and operating Legally Blonde In Martinez for 10 years. I am grateful for the dedicated and loving clients that I have kept throughout my 25 Years of working in the Hair industry, I feel it is a joy to Make people feel beautfiul and special, We look forward to our new adventure, and the joy of creating a team/​family at Cosi Bella.

Cosi Bella Day Spa also recommends

Monica at Cosi Bella

32

reviews

Skin Care

,

Spray Tanning

,

Waxing

Mary M. says,

«Our Esthetician is fabulous! Book with her and you will not be disappointed!»

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20 reviews of Cosi Bella Day Spa

No registration required
Place rating: 5
Martinez, CA
Trisha, is one of the best nail tech have ever had. She is very clean and detailed. She puts your needs first and go’s out of her way to make you happy. I will never go anywhere else. The whole staff is kind and welcoming. Great place!!!
Place rating: 5
Martinez, CA
Trisha is amazing with pedicures, manicures, shellac, gel, acrylics. You name it and she can do it! She cares about her clients and listens to what they want.
You can’t go wrong with having your hands and feet taken care of by this wonderful woman.
Place rating: 5
Martinez, CA
Trisha is amazing. Shellac, Acrylic freeform, manicures and pedicures — she does all of it and does it well.
Go see her and be amazed at the quality and care she gives all of her customers.
Place rating: 5
Benicia, CA
What a difference it makes when you patron someone who knows what they’re doing with your nails. Trisha took my two week old, peeling, and misshapened nails and gave them new life with this matte manicure. Patient and knowledgeable, she answered all my questions about her tools and products. She taught me a lot! I was really grateful for her taking me on such short notice as well since I had to get the manicure in between classes.
I was also impressed with her organic sugar scrub and almond oil finish. They were small touches that made me appreciate the care she takes for her clients. Freshly polished and smelling amazing, my nails were saved by her!
Thanks again Trisha! I really do appreciate your good work!
Place rating: 5
Livermore, CA
Stephanie is a color genius! I have never walked out of there feeling less than a movie star. Most importantly, she cares about her customers. I have gone in there several times wanting something funky and high maintenance. Rather than just taking my money and running with it, she goes over ALL the cons of my ideas and suggests a more time reasonable alternative. The salon is in a GREAT location. Go down the street for beer and appetizers to show off your now hair style!
Place rating: 5
Concord, CA
I came here in search of finding a great hairstylist. I heard Fani was really good and I saw her Instagram and she has all her work on there and it was very impressive. So I gave her a try, set up an appointment and came in. I was helped immediately! The place was so beautiful and clean I was in awe.
She sat me down to assess what I wanted. I already had short hair but it was an uneven cut so I wanted it fixed. She washed my hair and kept conversation the whole time, just trying to get to know me and I really liked that. Once she washed my hair she took me over to start the cut and she gave a lot of tips on how to deal with my hair since it was curly and dry, I really appreciated that as well.
After the cut she dried and styled my hair just the way I liked it even giving me more tips on how to style my hair and how to keep it voluminous. She found out that I love coffee and even set me up with the yummy coffee machine they have on the side.
I have come back to Fani twice and am still very satisfied with her service and can sincerely say I will continue to go to her for my hair care.
Place rating: 5
Walnut Creek, CA
This day spa is so cute and trendy. I followed my Manicurist Trisha here. I’ve been a client of her for 3 years and won’t let anyone else touch my nails. She has a ton of years of experience and is very clean. Her manicurists and shellac last forever. I get my mani done every 3 weeks and my toes done every four weeks. Her prices are super affordable and include a sugar scrub and relaxing massage. I highly reccomend her for all your nail needs. She is in the spa Tuesday-​Saturday 7am-​8pm. You can book online for convince.
Place rating: 1
Martinez, CA
I had trouble contacting Monica to get an appt, 3 attempts. Find out when she finally called me, cause she is just too busy, and they do not offer threading, incorrect sort by Unilocal.But then Monica called, I think ONLY after I posted 1 star for their lousy rating for not calling back a potential customer. She rudely asked me to remove my rating with 1 star, and rude too boot, interrupted me and was just not nice. She did not know how to talk to someone… They will not get ANY of my business… perhaps with the money she makes she could go to a class on customer service.
Place rating: 5
Pittsburg, CA
Micka is amazing! I have been having a lot of back pain from my job and often leave the office with pretty bad tension headaches. I LOVE getting massages but hadn’t found the perfect person/​place to go to until I tried Micka at Cosi Bella. She is warm, friendly, welcoming and very professional. My massage was so relaxing and totally relieved the headache I had been having all week. Her pressure was perfect, firm enough to make a difference but not at all painful. All around fantastic massage– I will definitely be back!
Place rating: 5
Lafayette, CA
Monica is great at what she does. I strongly recommend her. Great experience and great value.
Place rating: 5
San Lorenzo, CA
I live in San Lorenzo (in between of San Leandro and Hayward) and had to go all the way to Martinez to get my hair done. 40 miles. 45 minute drive and I’m telling you, it’s worth the trip! I discovered the place through a coworker’s recommendation.
A couple of weeks ago, I decided to dye my hair burgundy with caramel highlights at a different place nearby our house (first time I would dye my hair a «wild» color). When the session ended, I ended up looking like a freaking tiger! It didn’t even look burgundy at all and she insisted that it will take a couple of days before the red would show. So I waited but still nothing! I had to live a whole month looking like a zoo animal.
One day my coworker and I were having a conversation about this and how great her hair changes are then she told me about Cosi Bella. I was a bit hesitant at first because when I got an estimate, it was cheaper than what was offered from another place I asked in San Jose. But my coworker told me to «just trust your hair with Fany» and so i did. I had a subtle deep red ombré done and it looks like a million dollars!
She first dyed my roots to get rid of those hideous highlights to my natural color. Rinsed, then bleached lower part of my hair where the red will be vibrant. Rinsed, then the red. I love it! I love it! I don’t mind driving this far every couple of months to get my hair professionally done! Thank you so much, Fany! You were entertaining and so fun to talk to, it didn’t even seem like a 3 hour session! It was so nice to meet you. I will definitely see you soon!:)
Place rating: 1
Concord, CA
I bought a groupon for a hair color and hair cut with Sherris Copley. Within 5 minutes of coloring my hair, she said that she would have to charge me extra because I had so much hair. My hair isn’t very long (shoulder length). I’ve had my hair colored before tons of times in the past and nobody charged me extra because I had so much hair. This was so surprising to me. I think she charged me the extra $ 20.00 because I had a groupon and maybe she was losing money. Not a good first impression. I also didn’t like the fact that she answered a personal call as she was coloring my hair. She answered her phone and went back to my hair. The whole point of doing groupons is to get more clients for your business at a cheaper rate. Bad first impression! I will not be seeing Sherris again!
Place rating: 5
Martinez, CA
Monica Lucero is incredible. I went to her for a facial and upon arriving, I felt intense anxiety due to a spinal fusion surgery I am having. Monica went to work and within second, my breathing calmed, and my heart stopped pounding in my chest. I was in heaven! The music in the background is just right and Monica explains what she is doing and then goes to work. The massaging of my hands, arms, neck, and head a mask is nourishing my face is my favorite part. Monica knows her stuff and I will keep going back. Greatest facial ever!!!
Place rating: 5
Martinez, CA
I’ve gone here a couple times now for the facials and I always go to Monica Lucero. She is AMAZING! She knows what she’s doing and she’s so kind. She always makes my experiences so relaxing and I always walk out feeling like my face has been rejuvenated. Even though I’ll be moving an hour away, I won’t let anyone else touch my face, but Monica. You can trust her!
Place rating: 5
Martinez, CA
Awesome place! The people are so friendly.
Monica gives wonderful facials. She is very knowledgeable & such an awesome person. She does a great job! My face felt so clean & soft. I recommended her to family/​friends & they loved it.
Place rating: 5
Vallejo, CA
I can’t believe I forgot to Unilocal this place! (it’s been a few weeks)
Monica is magical. I received a gift through Groupon for the signature facial — which also included aromatherapy, warm hand mitts, and microderm scrub. Before the facial, she asked what I wanted to leaving feeling like — I said «glowing». She truly delivered. I have left facials in the past with red patches from extractions and somewhat pale skin from the deep clean. This was not the case with my facial at Cosi Bella Day Spa. I was GLOWING. I have literally never seen my skin look so beautiful. I was relaxed, clean, and I swear I looked younger!
I can’t wait to go back. Monica spoke just enough to explain what she was doing, but not so much that I couldn’t relax. She massaged my face, shoulders/​neck, hands, and arms. I cannot say enough how wonderful she was. I am dying to go back!
Also, the line she uses is incredible. I have sensitive skin and didn’t experience any issues with it. In fact, I am seriously considering purchasing the moisturizer because it was fantastic. She gave me all of the product information and didn’t even bring up the purchase of products until I asked.
I would definitely recommend her and hope to be visiting her again and again very soon.
Place rating: 2
Vallejo, CA
It is clear to me that the owner of this salon values her business as well as her clientele. True to her word, she refunded me her portion of my bill. Understandably, I would need to contact Groupon for their portion. I truly appreciate business owner like her and would recommend visiting her salon if your are in the area.
On another note, I was confronted by a friend/​client of Sherris’ for my original review. The woman told me that if I had nothing nice to say, I should say nothing at all. It is my understanding that Unilocal is for reviews both good and bad, and if Sherris doesn’t appreciate my honest feedback, it only cements my feelings about her as a business professional. I recognize that it is (remotely) possible that Sherris was not aware of her friend’s actions and invite her to inform me if that is the case.
Place rating: 5
Martinez, CA
I have been to this Day Spa 3 times for services with Monica.
On my first visit with Monica, she was delightful, listened to what I needed, and has a very therapeutic studio with a comfy table and relaxing lighting and music. Monica provided so wax work for me very painlessly with good results. She told me if I would like to try out getting my brows tinted she would do them complimentary.
My second visit was a week later, Monica was able to stay open late to accommodate my scheduled. I had an appointment to get my brows tinted, it took 45 minutes and 2 different colours, my brows looked great! Monica did not comp my brow tint but since she did accommodate me time wise and they looked great, I paid and tipped well.
My 3rd visit did not go as well. I made a few comments in my review that got the attention of the owner and Monica generating some changes. I am happy to hear they made changes to thier practice and I look forward to visitng them soon.
Cosi Bella Day Spa is one of the nicest salons in Martinez.
Place rating: 5
Crockett, CA
After living in the Bay Area the past 3 years — I finally found a great Salon and Stylist I can stick with.
Sherris did my keratin treatment and trimmed my bangs. I know it sounds simple to cut bangs — it is not. There is an artform to it and Sherris perfected my bangs! I am so happy.
The Salon itself is decorated super cute. Leopard print and antiques. Full length mirrors. All the Women who work in the Salon were really down to earth, friendly and made you feel comfortable.
Place rating: 5
San Francisco, CA
Came back to get my hair done, Mary is absolutely wonderful individual who did a fantastic job on my hair! Did an awesome style that I have never tried before and felt like she took ten pounds off my head.
Also she has a way of making you feel at home and oh so comfortable. Cosi Bella is an excellent location I highly recommend!