your formula for wellness

+ modern beauty

Right outside your front door.

boston’s original home for next-level self care.

Just steps from Newbury Street, G2O is your oasis in the bustling city— we’re Boston’s hub for beauty and wellness. Our talented team of experts combined with superior technology awaits to help you create a practice of balance and self-care that works with your lifestyle, not against it. It’s time to feel authentically you.

Best Sellers

view all

bringing you exclusive specials

Receive a Signature Facial + save 20% off Yon-Ka

This August, reinvigorate your skincare regimen. Receive a Signature Facial and get 20% off your Yon-Ka purchase.*

To stack your savings, secure an appointment for a Signature Facial during Tax-Free Weekend, and save 20% off your Yon-Ka purchase PLUS no tax!

Did you know that by purchasing your homecare from your G2O service provider, you are helping to generate opportunities for their continued training and education? With your Yon-Ka Paris purchase at G2O, you are helping our estheticians earn a trip to Paris in 2026 to tour their facilities and have a private audience with the matriarch of the company, who is always eager to hear feedback about their product. Help our incredible team get to Paris, and they will be taking your feedback with them.

*In order to qualify for the 20% discount on Yon-Ka, the Signature Facial must be received during the month of August 2025. This does not apply to other types of facials, nor to any appointment booked in August for a date outside of August. This only applies to Yon-Ka. All Yon-ka purchases contribute to the trip to Paris, whether you are eligible for the August discount or not.

bringing you exclusive specials

Don’t Miss Tax-Free Weekend! Aug 9 – 10

Come in store or visit our online shop to get your home-care favorites tax-free on Saturday, August 9 and Sunday, August 10.

bringing you exclusive specials

We won Boston Magazine’s Best of Boston® 2025 – Best Massage!

Book today to secure your time with our award-winning, in-demand team of massage therapists.

Looking to try something new? Try our Himalayan Salt Rejuvenation.

bringing you exclusive specials

Back To School: Educator + College Student Salon Discount

With back to school season upon up, we want to remind you that we offer an educator + college student discount of 10% OFF Salon Services!

Just show a valid educator or school ID each time you check out for salon services.

We understand educators + students alike want to kick off the new school year looking and feeling their best.

When you book any appointment at G2O, you are granted access to our amenities for the day of your service.

Come in before your cut + color to unwind in our steam rooms or co-ed sauna. After your appointment, enjoy a cup of tea in our fireside lounge.

Know an educator or college student who could use some self-care before summer comes to an end? Forward this to their inbox to share your support.

*As an 18+ facility, this discount applies to students 18 and over. The ongoing 10% educator and student discount valid for hair services only. 

bringing you exclusive specials

How Brides Can Get Day-of Wedding hair + Makeup Complimentary

Brides receive complimentary day-of wedding hair + makeup when a wedding party of five or more (including a bride) book hair + makeup for weddings from September – December 2025.

Contact our Operations + Groups Manager, Catherine, who will be happy to assist you with booking your wedding glam.

*In order to qualify, brides are required to book both hair and makeup trials. Trials are not complimentary. The bridal party is not required to get hair or makeup trials. This promotion is available for wedding days from September 1 – December 31, 2025.

bringing you exclusive specials

Try our latest supercharged service: Dynamic Synergy Facial Treatment

G2O’s newest service, the Dynamic Synergy Facial Treatment, utilizes multiple results-driven technologies to amplify their effects. By combining our NSR Non-Surgical Facial Remodeling service (formerly Smooth Skin) with the exfoliating benefits of our signature HydraFacial, we are able to offer one of the most advanced non-invasive, non-surgical face lifts available.

90 minutes. $350-$380 (savings of up to $99 when combined)

Member Perk: Members get two weeks of exclusive access to this new offering starting August 1st.

Beginning August 15 the Dynamic Synergy Facial Treatment will become available to everyone.

Want to enjoy this exclusive member perk and more? Click here to learn more about our membership options that won Boston Common Magazine’s Best of Luxury Beauty award for Best Spa Membership.

What is NSR Non-surgical Facial Remodeling?

For those of you who are familiar with our Smooth Skin service, the NSR Non-surgical Facial Remodeling is a new name for an upgraded version of this technology.

The treatment uses 5 electrotherapy technologies designed to work in synergy to deliver the most remarkable, non-invasive, skin remodeling results in the world of medical esthetics.

Key Results:

Smoothing facial expression lines

Improving the appearance, texture, and tone of your skin

Tightening pores

Lifting the cheeks, jawline, and neck.

Redefining and tightening the face oval

For optimal results, this service should be done in a series of 6 treatments.

As a standalone service, NSR Non-Surgical Facial Remodeling

60 minutes     $205-$220

bringing you exclusive specials

New Platinum Hydrafacial Service: Hyrdafillic with Pep9

This one is a game changer!

Hydrafillic with Pep9 combines nine unique peptides to help reduce and prevent visible signs of aging, deeply hydrate, and help strengthen the skin barrier. Book this service to reveal a firmer, more youthful-looking complexion.

60 minutes                  $300-$315

Member Perk: Members get two weeks of exclusive access to this new offering starting July 1st.

Beginning July 15 the Hydrafillic service will become available to everyone.

Want to enjoy this exclusive member perk and more? Click here to learn more about our membership options that won Boston Common Magazine’s Best of Luxury Beauty award for Best Spa Membership.

You may have also noticed on our Instagram that G2O Spa + Salon was recently recognized as one of the top 100 locations in the country to receive a Hydrafacial.

Now is the perfect time to book and experience all the reasons why we made the top 100 for a second year in a row.

bringing you exclusive specials

Open Newbury Walk-In Special

Open Newbury’s 2025 season starts on July 13 and runs through September 21. With G2O less than a block from the summer festivities, we are offering a special on select services for Sunday Walk-ins during this period.

Walk in and choose two of the following services to receive 15% off both:

Salt Cave

Cold Plunge/ Red Light Therapy

Aromatherapy Group Steam

*Subject to availability. Only available to walk-ins on Sundays from July 13 – September 21.  

All clients please be advised that you should plan for additional time to arrive on Sundays during this period due to street closures and reduced parking in the area. Our cancelation and no show policy will remain in effect.

featured in

Reviews

I’m so happy that Nadja was my stylist! 12 out of 10 perfect! Super nice, very hospitable, AND MY HAIR LOOKS AMAZING! I’ve given her business cards to several friends! I will definitely be back!
— Courtney C.
Perfect morning at the spa! It was a birthday treat from my daughter....I enjoyed the Experience Room and the Salt Room. Both were very relaxing! Spotless facility and top notch staff.
— Heather B.
Amazing facilities, great services. Had a signature facial done and it was so relaxing and my skin glowed for days after.
— Kathryn O.
Great experience!! The staff was welcoming and the space is beautiful. Sasha, works in the spa and she performs my brow tweezing. She does a perfect job! She is the only one I trust to shape my brows! I’m always so pleased.
— Lauren D.
From day one of going into this spa I was greeted by Dave treated very special all of my needs were taken care of. The staff is professional, respectful and ensure that you have a wonderful time. I love feeling more relaxed than when I came in I so appreciate the staff taking that extra time to make sure that my needs were mad and that I was okay this is what service should look like 365 days out the year.
— Gloria W.
I received an incredible signature facial from Alina! She was so kind and knowledgeable, and she took the time to discuss my skin concerns with me. I felt so relaxed and rejuvenated after! Also, the facilities/amenities at this spa were fantastic. Overall very impressed and I’ll definitely be back!
— Taylor S.
Loyalty Program
Reap the rewards, you’ve earned them.