Vitamin B12 shot · Seaport
B12 Injections in Seaport, Boston
B12 Injections delivered to the Seaport by a licensed registered nurse, or booked at either South Boston clinic — $30 walk-in, or $79 bundled with a full IV drip.
Medically directed and founded by Olivia Kelly, NP, NP, RN — Licensed since 2003.
B12 is required for red blood cell production and nerve function, and deficiency is common in vegetarians, people on metformin or acid reducers, and anyone over 50. An intramuscular shot bypasses absorption issues entirely. The Seaport is conference and corporate territory: booth crews, launch weeks, and Saturday-morning recoveries after a night on Northern Ave. We serve the Seaport two ways: at our South Boston clinics on A Street and L Street, or with a licensed nurse dispatched to your address. The Seaport is our closest coverage area — walk-in at A Street or expect mobile dispatch in 45–75 minutes.
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More on B12 injections
Full protocol details, ingredients, and pricing for B12 injections across all of Greater Boston.
Pricing
Transparent pricing
B12 Injections
$30 walk-in, or $79 bundled with a full IV drip
The Rookie + B12 Special pairs a 1L hydration drip with the shot for $79 — our best value.
Mobile to Seaport
+$100
One concierge fee per visit, not per person. No travel fee at either clinic.
Membership pricing
10% off
Active members save on every drip and injection, every visit.
HSA/FSA accepted. Ask about membership pricing.
Benefits
Why patients choose B12 Injections in Seaport
Fastest visit we offer
In and out in ten minutes. This is the appointment people fit into a lunch break.
Bypasses gut absorption
Intramuscular delivery works even when oral B12 does not — the usual reason supplements have not helped.
Energy and mood support
Correcting a genuine deficiency reliably improves fatigue, and often mood and concentration with it.
Stackable
Add it to any drip, or run a weekly series if you are correcting a documented low level.
Who it's for
Is B12 Injections in Seaport right for you?
- Vegetarians and vegans
- Patients on metformin or long-term acid reducers
- Anyone with fatigue that supplements have not touched
- Weight-loss patients pairing B12 with lipotropics
The process
What to expect at your visit
Book your slot
Choose clinic or mobile to Seaport. Same-day availability is normal during operating hours.
Nurse assessment
Your RN reviews medical history, medications, and vitals, and confirms a B12 injection is appropriate for you.
Treatment
Under 10 minutes. You stay seated or lying down; your nurse monitors you the entire time.
Aftercare
Post-treatment guidance, hydration advice, and a direct line if you have questions in the following days.
Locations
Two South Boston clinics
IV League Hydration — L Street (East Campus)
47 L StreetSouth Boston, MA 02127
Mon – Tue: 10am – 6pm · Wed: Closed · Thu – Fri: 10am – 6pm · Sat – Sun: 10am – 2pm
IV League Hydration — A Street (West Campus)
36 A StreetSouth Boston, MA 02127
Mon – Tue: 10am – 6pm · Wed: Closed · Thu – Fri: 10am – 6pm · Sat – Sun: 10am – 2pm
Serving South Boston, Seaport, Fort Point, City Point, Dorchester Heights, the Financial District, Back Bay, Beacon Hill, the South End, the North End, Cambridge and Brookline.
Neighborhood pages:South BostonSouthie / L StreetBack BayBeacon HillSouth EndNorth EndSeaportCambridgeBrookline
Looking for a specific treatment in your neighborhood? Browse the Boston neighborhood service directory.
See our full guide to IV therapy in Boston. Mobile IV service available anywhere in Greater Boston — learn about mobile IV in Boston or see our mobile IV group events guide.
FAQ
Common questions
How much does a B12 injection cost in Seaport?
B12 Injections is $30 walk-in, or $79 bundled with a full IV drip. The Rookie + B12 Special pairs a 1L hydration drip with the shot for $79 — our best value. Mobile service to Seaport adds a $100 concierge fee to the drip price; there is no travel fee at either South Boston clinic. Every posted price is all-inclusive — nurse time, supplies, and all listed ingredients.
Do you have a clinic in Seaport?
Our two clinics are in South Boston — 36 A Street (West Campus) and 47 L Street (East Campus). We do not have a storefront in Seaport, but we deliver mobile a B12 injection there the same day. The Seaport is our closest coverage area — walk-in at A Street or expect mobile dispatch in 45–75 minutes.
Where in Seaport do you go?
Anywhere in the Seaport — private residences, hotel rooms, offices, and event spaces. Common requests include Omni Boston Hotel at the Seaport, Envoy Hotel, Yotel, and surrounding blocks.
How long does a B12 injection take?
Under 10 minutes. For mobile visits in Seaport, add roughly 15 minutes for setup and post-treatment monitoring before your nurse leaves.
Who administers the treatment?
A licensed registered nurse, every time, under protocols directed by our Medical Director Olivia Kelly, NP. We have been nurse-owned and operated in Boston since 2018 and use single-use sterile supplies on every visit.
What is actually in it?
Methylcobalamin B12, intramuscular. Your nurse reviews the full ingredient list, medical history, and any contraindications with you before starting.
Can you treat a group in Seaport?
Yes. Group mobile visits in Seaport are common for weddings, corporate teams, and events — the $100 concierge fee is charged once for the visit, not per person. See our mobile group events page for details.
Ready to book b12 injections in seaport?
Same-week appointments available. Free consultations for weight loss and peptide clients.
Coverage
Where we go in Seaport
The Seaport is our closest coverage area — walk-in at A Street or expect mobile dispatch in 45–75 minutes.
- Omni Boston Hotel at the Seaport
- Envoy Hotel
- Yotel
- Seaport District offices
- Boston Convention & Exhibition Center
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Hangover IV Drip in Seaport
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Hydration IV Therapy in Seaport
From $79 — Rookie + B12 Special
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Weight Loss Injections in Seaport
Program pricing — consult required