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Vitamin B7 Blood Test

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Vitamin B7, also referred to as Biotin, is necessary for metabolism and hormone production.

What is this test?

The Vitamin B7 Blood Test works by collecting a blood sample and measuring the levels of vitamin B7 within that sample. Your body does not produce B vitamins on its own. Biotin, and other B vitamins, are ingested through foods such as meat, fish, eggs, seeds, nuts, and certain vegetables (such as sweet potatoes, spinach, and broccoli), or through supplements. 

Why would my doctor order a Vitamin B7 Blood Test?

Your provider may order this test to screen for a vitamin B7 deficiency, malnutrition, or possible malabsorption disorders such as Celiac disease, Crohn’s disease, or cystic fibrosis. 

When should I order a Vitamin B7 Blood Test?

Your provider may wish to order a Vitamin B7 Blood Test if you’ve exhibited symptoms of B7 deficiency, including:  

  • hair loss
  • muscle pain
  • fatigue
  • a red rash around the eyes, nose, mouth, and genital area 

A Vitamin B7 Blood Test may also be ordered to monitor pregnant women or people with malabsorption disorders. You cannot take a Vitamin B7 Blood Test at home — this test can only be administered by a medical professional at a licensed testing facility. 

How do I read the results of the test?

Once you receive the results of your test, you will need to consult with your provider. Only a medical professional can advise you on the results of your Vitamin B7 levels and help you develop a treatment plan if necessary. 

Do my results change with age?

People with health conditions that impact how the body absorbs nutrients or who are on certain medications can be at risk of developing a vitamin B7 deficiency at any age. It is rare for a healthy person eating a balanced diet to suffer from vitamin B7 deficiency.

What should I expect at my appointment?

There are no specific requirements to prepare for a Vitamin B7 Blood Test, but your provider may advise you to discontinue taking Biotin supplements for a few days before testing. Your provider will draw a blood sample from a vein in your arm. Vitamin B7 Blood Test results typically take 6-12 business days to process. 

How much does a test cost?

The cost of a Vitamin B7 Blood Test listed on Tripment Health is transparent and final – you will never be asked to pay additional fees at the testing facility, or receive a surprise bill down the road. 

Where can I find an affordable Vitamin B7 Blood Test near me?

Tripment Health has partnered with nearly 7,000 lab test facilities across 48 states. Finding a Vitamin B7 Blood Test, current procedural technology (cpt) code 391, is easier than ever. Add the lab tests you need to your cart, then select a testing facility conveniently close to you. 

Do you need to fast for a Vitamin B7 Blood Test?

No, there are no fasting requirements for this test. 


+$15 service fee

Price does not include the Physician Service Fee ($6) and the Lab Collection Fee ($9). These non-refundable fees cover the ordering and oversight of lab tests and follow-up services when appropriate.

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Provided by Quest Diagnostics

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  • 1. Select a test

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  • 2. Pay online

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  • 3. Go to the lab

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  • 4. Get fast results online

    We will email you when results are ready, in 1–3 business days

Lab tests FAQs

No. At Tripment Health, we focus on providing transparent healthcare services to uninsured or under-insured individuals. We’ve negotiated prices directly with lab test facilities to make diagnostic lab panels available to individuals who would rather pay directly than go through a private or government-sponsored insurance carrier.

No. By purchasing a blood panel, you will not be able to submit any claim, bill, or other request for reimbursement to any insurer, third-party payer, or Government health program. However, you can use your FSA or HSA card.

You will receive a payment confirmation email, then an additional email confirming your appointment details (type of test, time and location of appointment, and QR code). You will need to present your QR code to the testing facility in order to check in.

Once your test is complete, you will receive your results within 1-3 business days.

With a blood panel, you can establish your body’s baseline values for basic health measurements like cholesterol (total, triglycerides, HDL, LDL and total cholesterol/HDL ratio), glucose and hemoglobin A1c. Additionally, depending on the blood panel you choose, you will receive data on performance measurements such as Vitamin D, Vitamin B12, Magnesium, Thyroid Stimulating Hormone, and/or Testosterone.


Your results are more than just numbers. Your results come with a personalized recommendation from one of our physicians.

No. One of our physicians will order the panels for you.

You must be 18 or over to be able to get tested.

Currently we have local patient service centers available in all states, except in NY, NJ, TX & RI.