B12 from Invigor Medical

Buy Vitamin B12 Injections Online

Buy B12 Injections, prescribed by specialists, filled by an FDA registered pharmacy

Licensed Physicians
Licensed Physicians
Legitimate Pharmacies
Legitimate Pharmacies
Prescription Included
Prescription Included
Licensed Physicians
Licensed Physicians
Legitimate Pharmacies
Legitimate Pharmacies
Prescription Included
Prescription Included
For Use By
Primary Benefits:

Purchase B12 Injections

When you Buy B12 Injections from Invigor Medical, it guarantees that you are working with a licensed, experienced, and dedicated doctor and receiving vitamin B12 from a US-based, FDA 503B-registered pharmacy.
Increased Energy
Restoring vitamin B12 levels maximizes oxygen delivery to cells
Nerve and Muscle
Nerve and muscle cells rely on B12 to coordinate their activity
Improved Metabolism
Converts carbs into energy more efficiently

Single Purchase
4 Weeks
Per 4 Weeks

Vitamin B12 Graphic
Vitamin B12 Graphic

What is B12?

Vitamin B12 Deficiency is Common

Vitamin B12 is a water-soluble vitamin that is naturally found in some foods and added to others. B12 supplements are available in both oral and injectable forms. B12 deficiency is fairly common, affecting 6% to 23% of people under age 60 and nearly 20% of those over age 60. Malnutrition, vegetarian or vegan diet, gastritis, and alcohol misuse are contributing factors.

Vitamin B12 is Important in Carbohydrate and Lipid Metabolism and Red Blood Cell Function

B12 is essential for growth, cellular reproduction, blood formation, neurological function, DNA, and protein synthesis, among other things. B12 also aids in red blood cell production and metabolizing carbohydrates. Efficiently metabolizing carbohydrates and producing red blood cells that optimally carry oxygen to hard-working muscle and brain tissue boosts your overall energy and mental clarity.

Multiple Medical Conditions Are Associated with B12 Deficiency

Obesity, insulin resistance, dyslipidemia, and cardiovascular disease have all been linked to low B12 levels. B12 is involved in the regulation of DNA coding for proteins (epigenetics) as well as many metabolic processes in the cell. There is mounting evidence that B12-DNA interactions regulate lipid metabolism and play a role in fat deposition.

What is Included?

  • MEDICAL CONSULTATION: Discuss your treatment plan with one of our licensed Practitioners.
  • MEDICATIONS / SUPPLEMENTS: All medications and supplies are included. No Hidden Fees.
  • KNOWLEDGEABLE STAFF: Our medical staff are well trained and ready to answer your questions.

Compounds in the Medication

Vitamin B12
10,000mcg / mL
Learn More

Included Supplies

  • Instructional Materials
  • Insulin Needles
  • Alcohol Swabs

Signs You Might Need This Treatment Plan


You may be experiencing a combination of the following symptoms
  • Weight Gain
  • Fatigue
  • Depressed mood
  • Ringing in the ears
  • Numbness or tingling
  • Muscle weakness
  • Unsteady gait
  • Dizziness
  • Anxiety
  • Irritability
  • Difficulty sleeping
If you are experiencing any of the symptoms listed above, please fill out our medical forms. After that, an Invigor Medical specialist will contact you.

How Does B12 Work?

Absorbing Vitamin B12 is a Multi-Step Process

Vitamin B12 is an essential vitamin because it is obtained entirely through diet. Vitamin B12 is found in animal products and fortified foods in the diet, but it can also be taken as a supplement.

When bound to the food we eat, vitamin B12 is released from protein by hydrochloric acid and an enzyme called gastric protease. When vitamin B12 is added to food or taken as a supplement, it is already in a free form and does not need to be released. Once vitamin B12 is free, it combines with intrinsic factor in the stomach.

Intrinsic factor is a glycoprotein secreted by specialized cells lining the stomach called parietal cells. The combined intrinsic factor vitamin B12 is absorbed into the body in the ileum, which is the most distal part of the small intestine. Vitamin B12 then binds to transcobalamin, and the complex moves through the bloodstream. The complex is absorbed into cells. Approximately two years’ worth of vitamin B12 is stored in the liver.

Benefits of B12

B12, an essential vitamin, is not produced by the body and must be obtained through diet or supplementation. Vitamin B12 is crucial for producing red blood cells and proper nerve, muscle, and brain function. Consuming a vegan or vegetarian diet, having stomach or gastrointestinal disorders, or being older than age 60 increases the risk of vitamin B12 deficiency. Restoring vitamin B12 with B12 Injections can have the following benefits:

  • Better Nerve and Muscle Function
  • Clearer Cognitive Functioning
  • Lower Risk of Anemia
  • Improved Mood
  • More Energy
  • More Restful Sleep

Included with the Plan

No Hidden Fees

Free Doctor Consult

The consultation with the practitioner is always included when you buy [page_title].

Medical Support

Medical Support

Our friendly staff are knowledgeable and available to answer any questions.

Supplies Included

Supplies Included

When you purchase [page_title], all required supplies are always included.

No Doctors Office Visit Required

No Doctor’s Office

Skip the in person doctor’s visit and consult remotely, and get [page_title] shipped direct.

Licensed Pharmacies

Licensed Pharmacies

Our US based, FDA registered pharmacies provide quality meds tested for purity and potency.

Free Doctor Consultation

Licensed Doctors

Our licensed doctors cover all 50 states and are very well versed with the medications we offer.

B12 FAQ’s

The Plan
What do vitamin B12 injections do for you?

B12 injections can replenish vitamin B12 in people who are deficient. Low vitamin B12 levels are more common in people over the age of 65, those with gastrointestinal problems, strict vegetarians, and those who have had bariatric surgery. There is some evidence that supplemental B12 can improve mood even in people without a true vitamin B12 deficiency.

Restoring B12 levels can provide the following benefits:

  • Improved memory
  • Improved mood
  • More energy
  • Decrease in weakness and fatigue
  • Improve the health of skin, hair, and nails
  • Improved sleep
  • May improve ringing in the ears
How long does a B12 injection last?

The effects of B12 injection can be felt within about 48 to 72 hours. People who are not deficient in B12 are not likely to notice any benefits. How fast B12 is metabolized in the body will also vary by person but is expected to be less than one week.

What are the symptoms of low B12?

Vitamin B12 affects numerous bodily functions, including the production of red blood cells and brain functions. Symptoms of low B12 include:

  • Fatigue
  • Muscle weakness
  • Nausea
  • Trouble with balance
  • Irritability
  • Weight loss
  • Numbness or tingling in the hands and feet
  • Diarrhea
  • Smooth and tender tongue
  • Fast heart rate
Who is high risk for vitamin B12 deficiency?

Risk factors for vitamin B12 deficiency include:

  • Using antacids long-term
  • Having pernicious anemia
  • Having inflammatory bowel disease
  • Having autoimmune disorders such as type 1 diabetes
  • Taking high doses of folic acid
  • Having lower stomach acid levels due to aging
  • Taking metformin for more than four months
  • Being vegan or vegetarian
  • Using alcohol excessively
  • Having a family history of B12 deficiency
  • Having part of your stomach or intestines removed
  • Being older


How soon do you feel less tired after a B12 injections?

If you are vitamin B12 deficient, a vitamin B12 injection is expected to have effects within 48 to 72 hours. Depending on your metabolism and the severity of your vitamin B12 deficiency, you may notice improvements in your energy levels as soon as 2 to 3 days, but it may take weeks of treatment to feel the full effects.

Why do B12 levels drop?

Vitamin B12 deficiency and insufficiency are relatively common because:

  • Some medications slow B12 absorption or increase B12 use.
  • Certain medication conditions make it harder for the body to absorb B12
  • Of limited dietary intake, especially in people who are vegan or vegetarian.
What prevents B12 absorption?

Unlike other vitamins, B12 requires intrinsic factor, a substance produced in the stomach to aid in B12 absorption. In those with low stomach acidity (a condition associated with aging), a lack of intrinsic factor can lead to a lack of vitamin B12.

Inflammatory bowel disease and other bowel conditions, having surgery on the stomach or intestines or even the bacterial flora composition in your intestines can affect B12 absorption.

Can you have too much B12?

Vitamin B12 is a water-soluble vitamin. Since excess vitamin B12 can be excreted in the urine, even high doses are generally considered to be safe. There is no set “tolerable upper limit” for vitamin B12 because it has such a low potential for toxicity and the body does not store excess amounts. The recommended daily intake (RDI) of vitamin B12 is 2.4 mcg for both men and women.

Invigor Medical
Do I need a prescription before I buy from Invigor Medical?
No, Invigor Medical employs doctors licensed in all 50 states, and a medical consultation is included with each medical service. Each patient will recieve a valid prescription which is sent to the pharmacy to be filled.
How long does it take to get my medication?
Once you have enrolled for medical services with Invigor Medical, it usually takes 3-7 work days before items arive at your home. This process includes an online medical consult, prescription approval, the medication getting filled at the pharmacy, and the medication sent to your home.
How do I know if I will be approved?
Most of the services that Invigor Medical offers are elective services. This means that most clients, if there are no restrictive contraindications, will be approved for the medications of their choice.
More Questions?
Fill out the form below, and one of our treatment specialists will contact you.
  • Low Vitamin B12 and Lipid Metabolism: Evidence from Pre-Clinical and Clinical Studies
  • Oral Versus Intramuscular Administration of Vitamin B12 for the Treatment of Patients with Vitamin B12 Deficiency: A Pragmatic, Randomised, Multicentre, Non-Inferiority Clinical Trial Undertaken in the Primary Healthcare Setting (Project OB12)
  • Vitamin B12
  • Vitamin B12 Deficiency
  • A Systematic Review and Meta-Analysis of B Vitamin Supplementation on Depressive Symptoms, Anxiety, and Stress: Effects on Healthy and ‘At-Risk’ Individuals
  • Vitamin B12 Supplementation: Preventing Onset and Improving Prognosis of Depression
  • The Effect of Methylated Vitamin B Complex on Depressive and Anxiety Symptoms and Quality of Life in Adults with Depression
Related Articles
Some articles that might shed some light on this treatment plan
B12 Injections: How Often Should You Take Them?
What is a B12 Injection? Have you heard about the benefits of B12 supplements? Vitamin B12 is an essential vitamin that our bodies require for proper function of the brain and nervous s...
Are B12 Injections the Missing Link for Your Anti-Aging Fight?
Many people have heard of B12 injections, but may not be sure what they are for or why you need them. One of the biggest hallmarks of aging is often a decrease in energy levels and a correspondin...
As Featured In