Vitamin B12 and other B vitamins are essential nutrients involved in red blood cell formation, neurologic function, and energy metabolism. IV or injectable replacement may be appropriate for selected patients with documented deficiency, malabsorption, or another clinical indication after medical evaluation.
Vitamin B IV therapy can be done discreetly, with minimal side effects and no recovery time, Learn how it acts, its safety ratings, and how it’s different from similar Vitamin B treatments.

Medically reviewed by David Nazarian, MD — Board Certified in Internal Medicine and Medical Director of IV Vitamin Therapy.
What are B group vitamins?
The B group of vitamins is a group of eight water-soluble vitamins. Also known as “B complex,” this group of nutrients encompasses eight nutrients that are essential to health.
Just like all other vitamins, the body cannot produce B vitamins, so they must come from external sources. And yet, each vitamin in the group is necessary to accomplish different tasks:
- Thiamine (Vitamin B1) is used to metabolize carbohydrates and build amino acids.
- Riboflavin (Vitamin B2) is necessary to carry energy into each cell.
- Niacin and niacinamide (Vitamin B3) helps regulate cholesterol and carry energy to the brain.
- Pantothenic acid (Vitamin B5) triggers the production of proteins and collagen.
- Pyridoxine (Vitamin B6) regulates the hair growth cycle, strengthens nails, and lowers blood glucose levels.
- Biotin (Vitamin B7) turns fat storage into usable energy and helps produce collagen.
- Folic acid (Vitamin B9) helps ensure that DNA is copied correctly while cells are dividing.
- Vitamin B12 (cobalamin) is required for normal red blood cell formation, DNA synthesis, and neurologic function.
What happens when you lack B group vitamins?
Since the body cannot produce its own B vitamins, dietary deficiencies can range from nuisances to serious problems. This includes:
- Crushing fatigue
- Hair loss
- Brittle nails
- Saggy and lackluster skin
- General malaise
- Memory lapses
- Slow-healing skin lesions
Many vitamins in this group interact between each other or with other nutrients. As a result, lack of B vitamins can. for example, cancel the effects of vitamin C supplements.
Vitamin B12 deficiency can cause megaloblastic anemia and neurologic symptoms. Low B12 can also be associated with cognitive symptoms, but B12 replacement has not been shown to prevent Alzheimer’s disease in people with normal B12 status.
Why am I missing vitamins?
Nowadays, we are used to thinking of malnutrition and dietary deficiencies as a thing of the past. As a result, we frequently see patients react with disbelief when we point out that their symptoms are caused by a lack of B complex.
And yet, eating well is often not enough! When we digest food, our stomach acids often destroy many of the micronutrients we eat before we get a chance to absorb them. Plus, our ability to absorb B complex can also be damaged by regular aging, chronic problems with the digestive system, and even side effects of some medications.
And yet, eating well is often not enough! When we digest food, our stomach acids often destroy many of the micronutrients we eat before we get a chance to absorb them. Plus, our ability to absorb B complex can also be damaged by regular aging, chronic problems with the digestive system, and even side effects of some medications.
Finally, people who are on special diets can also end up missing key nutrients along the way. This includes vegan, low-carb, and gluten-free diets.
If you are in an at-risk group, a clinician may evaluate for deficiency and determine whether oral replacement, vitamin B infusion, or avitamin B complex injection.
What is a B vitamin infusion?
Also known as vitamin B IV therapy, vitamin B infusions deliver specific vitamins directly into the bloodstream and bypass gastrointestinal absorption. The body still regulates, distributes, metabolizes, and excretes nutrients after IV administration, so IV delivery does not mean every microgram is retained or used. The appropriate route depends on the deficiency, underlying cause, medical history, and treatment goal.
Each infusion takes approximately up to an hour and can be administered in our spa-like offices or in the comfort of your own home or office.
What are some vitamin B infusion benefits?
The specific benefits provided by vitamin B infusions will depend on whether we are administering a complete vitamin B complex infusion or just specific B vitamins.
Thiamine is essential for normal energy metabolism. Replacement is medically important when deficiency is present, but IV thiamine should not be represented as a general energy or muscle-building treatment for people without a deficiency.
Vitamin B6 has important metabolic roles, but IV B6 should not be presented as a weight-loss treatment. If your goals include weight loss! Other benefits of vitamin B6 infusions will affect your hair, skin, and nails. However, these effects tend to take longer: hair loss may stop relatively quickly, but it will take some time for it to grow back.
Vitamin B6 has important metabolic roles, but IV B6 should not be presented as a weight-loss treatment. If your goals include weight loss! Other benefits of vitamin B6 infusions will affect your hair, skin, and nails. However, these effects tend to take longer: hair loss may stop relatively quickly, but it will take some time for it to grow back.
Vitamin B12 deficiency can cause neurologic and hematologic symptoms, and appropriate replacement is important when deficiency is confirmed or strongly suspected. IV or injectable B12 should not be promoted as a rapid “brain boost” for patients with normal B12 status; improvement depends on the underlying cause and severity of symptoms.
Why choose IV Vitamin Therapy for a vitamin B IV infusion?
At IV Vitamin Therapy, Dr. Nazarian leads a team that combines medical and nutritional expertise with superb service. We believe that wellness and health need to be a comfortable experience that invites people to take health into their own hands.
This is why our team of health professionals provides vitamin IV infusions at our luxurious clinic, or in the comfort and privacy of your own home. During the initial consultation, we will examine your lifestyle and goals, and keep an ear out for your preferences and priorities. Then, you will be able to choose between continuing at our luxurious, spa-like clinic or to schedule a visit with our concierge house call service.
Where can I get a B-vitamin infusion near me?
We serve patients near Beverly Hills, Bel Air, West Hollywood, Santa Monica, West Los Angeles, Culver City, Hollywood, Venice, Marina del Rey, Malibu, Manhattan Beach, Redondo Beach, Downtown Los Angeles, Encino, Woodland Hills, Sherman Oaks, Calabasas, Burbank, Glendale, Hidden Hills, Agoura Hills, Northridge, North Hollywood, Topanga, Canoga Park, Reseda, Valley Glen, Chatsworth, West Hills, Winnetka, Universal City, Silverlake, Echo Park, and many more.
Book now at +1-877-760-3564.
Frequently Asked Questions about vitamin B complex infusions
Are vitamin B infusions safe?
Yes, overwhelmingly so. The “riskiest” part of the procedure is installing the IV line – a routine task that our nurses and doctor are thoroughly trained for.
As for the vitamins themselves, the potential for vitamin B infusion side effects is very low. B complex vitamins are water-soluble, so any excess will quickly be disposed of as you urinate. Unlike, for example, vitamin A, it will not accumulate in your fat cells and cause problems or toxicity.
What is the difference between a B complex injection, an infusion, and an oral supplement?
Vitamin IV infusions offer a more reliable way to administer vitamins, which yields stronger and faster effects than the alternatives.
B complex tablets are usually taken by mouth, which poses two main problems:
- First, this causes some of the vitamins to get lost as they pass through your stomach. Plus, if you have a malabsorption problem, tablets will bring little benefit.
- Second, as they pass through your stomach, oral supplements bring a higher chance of digestive side effects, such as nausea or diarrhea.
Meanwhile, vitamin B injections bypass many of the downsides of tablets. However, they do not reach your bloodstream directly. Instead, they are given as an intramuscular injection, usually on your arm or glutes. From then, it will be absorbed through the tiny vessels that irrigate your muscles. With injections, some of the vitamins are lost, but the amount is nowhere near as high as with tablets or capsules.
Finally, tablets are pre-made mixes and dosages. Our vitamin B complex IV infusion is custom prepared for the needs of each patient. We can even add additional nutrients to your IV drip, addressing multiple deficiencies or concerns at the same time!
Who can administer IV vitamin therapy?
Any nurse or doctor can insert an IV line and administer an infusion. The true artistry in the procedure is designing the mix of vitamins that will be given each time. This is often determined after a thorough consultation, in which we will examine each patient’s symptoms, health history, and the interactions between vitamins.
If you are currently undergoing treatment for any medical conditions, check with your healthcare provider before beginning any supplementation.

