B12 IM Shot
$30

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Methyl B12 [2mg]
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Hydrox B12 [2mg]
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Fatigue
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Mental Fog
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Known Deficiency
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Dietary Need [Vegan]
$30 / $21 for Members
Brain feeling foggy? Exhausted after a long week? Just feeling run down? A vitamin B12 IM shot can do more than just treat a vitamin B deficiency - it can also improve brain functionality, boost energy levels, support your immune system and give you the mental clarity to de-stress and focus.
Vitamin B12 plays a role in many bodily functions, including brain cell function, nerve cell function, and energy metabolism. Most notably, it is needed for the body to form red blood cells and DNA. Without enough of it, a person may feel tired, weak, and just not “all there” mentally.
Vitamin B12 is essential to keeping nerve and blood cells healthy and maintaining many critical body processes like normal brain function. If you have a vitamin B deficiency or just need a boost, consider the benefits of B12 shots for gaining your energy back. Our vitamin B12 IM injection will be perfect for you! B12 shots get injected right into the muscle so you can begin to feel the effects immediately.

See what our spaces have to offer
Let’s get you feeling your best! To ensure that you’re comfortable at our IV therapy bar our ER certified staff will walk you through each step prior to infusion. At Onus iV, your IV infusion is administered by experienced professionals under ER protocols, as all staff are required to have a minimum of 2 years ER/ICU experience. In addition, we offer:
- Comfy Seats and sofas
- Private Rooms or Hammocks (subject to availability)
- Blankets & Heating Pads
- Phone chargers & outlets
- Netflix, Cable TV (where available)
- Complimentary WiFi
- Snacks and Refreshments including Teatulia Organic Teas, Rowdy Mermaid Kombucha & more!
Frequently Asked Questions About B12
Depending on your geographic location, B12 shots can range between $15-$100, with most IV Therapy / Longevity locations charging between $25 to $75.
At Onus, a B12 Shot is $30.
Everyone's body is different! Frequency will depend on your individual needs consider:
- Initial treatment: Daily for 5-7 days, then every other day for 7 doses
- Maintenance: Every 2-4 weeks for dietary deficiency
- Chronic conditions: Every 2-3 months
- Wellness maintenance: Monthly or as recommended by your provider
At Onus, you can purchase a B12 package or membership for $150
B12 shots typically work within hours of injection. It may however take a few days or weeks (especially if addressing a B12 deficiency).
Most clients at Onus report feeling increased energy within 24-48 hours.
Both are forms of B12 used in injections:
- Cyanocobalamin: Synthetic form, more stable, commonly used in IV Therapy / Longevity clinics
- Methylcobalamin: Active form of B12, may be better absorbed by some people.
At Onus, Methylcobalamin is our most commonly used form of B12 for injection.
B12 Injections are generally well-tolerated with minimal discomfort.
The injection involves a small needle into the muscle (usually upper arm or thigh) and feels similar to a flu shot. Any soreness typically resolves within 24 hours.
At Onus, our employees all have a minimum of 2 years+ working in an ER/ICU, helping your experience stay safe and as pain-free as possible!
There are a few common, mild side effects associated with B12 shots, including:
- Mild diarrhea, itching, nausea and vomiting, dizziness, headaches, and hot flashes
- Redness or swelling at the injection site
- Temporary soreness at injection site
Serious side effects are rare but require immediate medical attention.
B12 Shots aren't directly associated with weight loss. If you're curious about Peptide therapy for weight management & metabolism, click here to schedule a free consultation with one of our providers!
A few common symptoms associated with B12 deficiency are:
- Fatigue
- General weakness
- Irritability
- Numbness / Tingling
- Pale Skin
- Memory / Forgetful