A quick vitamin B12 injection from our medical team, booked on its own or added as a booster to your IV therapy visit, with a health review before your first shot.
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See Your PotentialVitamin B12 is an essential vitamin your body cannot make on its own, so it has to come from food or a supplement. A B12 shot places the vitamin into the muscle of the upper arm, which means it does not depend on your digestive tract to absorb it.
It is one of the quickest wellness boosters on our menu: a few moments in the chair and you are back to your day.
B12 is part of the process that turns the food you eat into usable energy.
Your body needs B12 to form healthy red blood cells that carry oxygen.
B12 helps maintain the nervous system and the protective layer around nerves.
B12 shots may suit healthy adults who want convenient wellness support. Our team confirms it is right for you first.
B12 comes mainly from animal foods, so vegans and vegetarians often look for another source.
People who feel run down and want to support the way their body produces energy.
Those who absorb B12 poorly from food, since an injection skips the gut entirely.
Patients short on time who want a wellness visit that fits between meetings.
If you are pregnant or breastfeeding, or you manage a medical condition, we may ask you to check with your physician before your first shot.
B12 reaches your body three common ways. Here is how a shot at our office compares with a daily pill and with our IV therapy.
| B12 Shot | Oral Supplement | IV Therapy | |
|---|---|---|---|
| How it is given | One small injection in the upper arm | A pill or liquid taken by mouth | A drip of fluids, vitamins and minerals into a vein |
| Absorption | Skips the digestive tract | Depends on how well your gut absorbs it | Goes straight into the bloodstream |
| Time it takes | The injection takes moments | Daily, at home | A longer, seated visit |
| Best fit | A quick, focused B12 boost | Routine maintenance when absorption is normal | Hydration, energy, immunity or skin goals, with B12 added if you like |
No special preparation is needed. Eat normally, stay hydrated and wear a top that gives easy access to your upper arm.
We go over your medical history, medications, supplements, allergies and wellness goals, and answer your questions.
The injection site on your upper arm is cleaned.
Your B12 is given with a small needle. The shot itself takes only moments.
Most people go straight back to their plans. The spot may feel a little sore or show a small bruise for a day or so. Tell us about any unusual reaction.

Founder · Medical Doctor
Dr. Mesnier founded our medical spa. Her certifications in advanced aesthetic procedures include PRP and neuromodulator applications.
B12 shots are given by our medical staff. Every shot begins with a conversation about your health, and our team helps you choose B12, IV therapy or a combination.
"Cassidy and Dr Mesnier were so knowledgeable about possible treatments that would work best for me."
Tonya Flaming, Google review
Add a B12 booster to an IV therapy appointment and take care of both in one visit.
Fluids, vitamins, minerals and antioxidants delivered into the bloodstream, with blends for hydration, energy, immunity and skin health.
Another fast wellness booster on our menu. Ask our team whether it suits your goals alongside B12.
We are honest about what wellness shots can and cannot do. They support a healthy lifestyle, and they are not a substitute for medical care, sleep, nutrition and exercise.
Choose a single visit or a booster add-on, and wellness program members receive member pricing. Current rates are on our medspa pricing page.
We also offer financing through Cherry for wellness treatment plans.
What Portland patients ask us most about B12 injections.
It helps most for people who absorb B12 poorly or eat little animal food, because the shot does not rely on the gut. For others it is a convenient boost rather than a fix, and our team will tell you honestly which applies to you.
Some pharmacies offer B12 injections, often depending on location and a prescription. With us, every shot starts with a review of your health history and goals, and B12 can be added to an IV therapy visit.
No single form suits everyone. Our medical team selects the B12 that fits your health history after your review and explains why.
B12 is not a weight-loss treatment on its own and does not replace nutrition, exercise or sleep. If weight management is a goal, ask our team about the MIC shot.
Our team recommends a schedule based on your health review, goals and response. Wellness program members receive member pricing on repeat visits.
Individual results vary. Some patients feel more energetic within days, while others notice little change, especially when their B12 levels were already normal.
Come in for a stand-alone shot or add B12 to your next IV therapy visit. Consultations are free.
5050 NE Hoyt St #626
Portland, OR 97213
In the Providence Plaza building, across the street from Providence Hospital.
Mon to Thu 8am to 5pm
Fri 10am to 4pm
Sat 9am to 2pm
Sun closed

Venus is a Certified Advanced Esthetician, Certified Phlebotomy Technician, and pre-nursing student with a passion for medical aesthetics and patient-centered care. She is dedicated to helping clients achieve healthy, radiant skin through result-driven, customized treatments tailored to their unique needs. As a patient advocate at heart, Venus loves working with all skin types and creating long-term skincare plans that focus on both visible results and overall skin health.
Her favorite treatments include Aerolase, NeoGen, and microneedling, innovative treatment options that deliver real, transformative outcomes. Outside of the treatment room, Venus enjoys creating social media content, exploring new food spots, and spending time with friends and family

Certified Advanced Esthetician




Dr. Natalie Mesnier, the driving force behind Ortho-Rejuv Wellness and Aesthetics, stands at the forefront of aesthetic innovation. With a rich background in the aesthetic realm, she is notably skilled in anti-aging laser therapies, skin revitalization, and the meticulous use of injectables and fillers. Alongside her certifications in advanced aesthetic procedures, including PRP and neuromodulator applications, Dr. Mesnier’s mission is singular: to empower patients to experience and radiate their utmost beauty and confidence.