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.

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bringing you exclusive specials

Purchase Yon-Ka + receive gifts for better sleep.

Make a $300+ Yon-Ka purchase + receive a Complimentary Yon-Ka Silk Night Mask with your choice of full-size Alpha, Nutri, or Phyto Contour.

Spend $500 + receive a complimentary full-size Serum CBD in addition.

*Available from June 1 – June 30 or While supplies last. Mask/Contour $112 Value. Serum CBD $128 Value. Combined value $240. In-store only.

bringing you exclusive specials

Salt Cave Special: Book 2 Seats, Get 3rd Complimentary

Better Sleep starts here. This June only, Book two seats in the Salt Cave + get a third seat at no additional cost.

Don’t miss this opportunity to introduce someone to the benefits of salt therapy.  Respiratory + Skin Benefits. Improved mood. Deeper relaxation. What better way to conclude a spa day than with a power nap with benefits?

Call or Text 617-262-2220 to book your seats today.

*Promotion available from June 1-30. All 3 seats should be booked for the same Salt Cave session.

bringing you exclusive specials

Boston Pride

Boston’s Pride parade will take place Saturday, June 14 this year.

The parade begins in Copley, so participants will be setting up along Exeter and extending down Boylston. For those coming to G2O that day, please give yourself extra time to get to your appointment.

We are offering hair tinsel applications that day for $15 per application. Book a 15 minute appointment or walk-in to join the wait list. Bring a little sparkle with you wherever your Pride plans take you.

bringing you exclusive specials

Introducing Blissy

100% Mulberry Silk pillow cases + bonnets that are gentle enough to protect + promote healthy hair + skin, yet strong enough to withstand stubble.

Find a selection of sizes + colors in store + experience the many benefits of silk during sleep – from comfort, to protecting your hair against breakage + frizz, to helping prevent fine lines + wrinkles.

Silk reduces friction, is hypoallergenic, + less absorbent, making it a great option for those with sensitive or acneic skin.

bringing you exclusive specials

Yon-Ka Upgrades Client-Favorite Service with Summer Skin Ritual

Yon-ka is taking over our experience room for a limited time with the Yon-Ka Summer Skin Ritual.

For the duration of this promotion, the Bali Revitalizing Ritual is getting the Summer Skin upgrade, featuring Yon-Ka’s Gommage aux Sucres – Mandarin.

For the same price as the client-favorite Bali experience, each client who books the Summer Skin Ritual will receive their own full-size Gommage aux Sucres – Mandarin to self-apply during the session + take home ($60 Value).

Self-apply the Gommage, from Yon-Ka’s Aroma Fusion line, as you detoxify in the steam of our beautifully-appointed Experience Room, with tranquil music + color therapy to amplify your relaxation. This product combines the exfoliating + moisturizing elements of the standard Bali experience in one single product.

After massaging this sugar scrub from neck to toe to buff away imperfections, utilize the Experience Room’s multiple shower heads. The warm water activates the product to melt into a nourishing milk to hydrate the skin with a silky finish.

1 person 40 min $85
For 2-6 people 40 min $75 per person

Members can experience the Yon-Ka Summer Skin Ritual beginning April 16. The service is live for everyone on May 1.

Interested in exclusive perks like this one, learn more about our memberships, which just won Best Wellness Membership in Boston Common Magazine’s Best of Luxury Beauty 2025!

*Each person who books this service will receive a Yon-Ka Gommage aux Sucres – Mandarin to use in service + take home the remaining product. ($60 value). While Supplies Last.

Call or Text 617-262-2220 to Book.

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

NEW: Oribe Restorative Night Creme

Oribe’s lightweight leave-in crème is your new nightly ritual, which deeply repairs + restores the hair into ultra-soft, silky locks with a youthful shine.

Look for it in-store during your next visit.

bringing you exclusive specials

Educator + College Student Salon Discount

As of March 1, 2025, we now 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.

AND for one month only, NEW salon clients get 20% OFF their first salon service when they show a valid educator or school ID.*

We understand time is precious for educators + students alike.

Make the most of it.

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 while you finish/grade this week’s assignments.

*As an 18+ facility, this discount applies to students 18 and over. Intro offer of 20% off salon services valid from March 1 – March 31, 2025 with a valid school or educator ID. Cannot be combined with ongoing 10% educator or student discount or other discounts. The ongoing 10% educator and student discount valid for salon services only + does not apply to spa services. Subject to change.

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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.
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