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Vitamin B12

Measures your B12 level — essential for nerve function, DNA synthesis, and energy. One quick draw, results usually in 1–2 business days.

$ 49.00All-in price
1Tests included

Vitamin B12 keeps your nerves healthy, helps make DNA, and is needed to form red blood cells. Deficiency is common — especially with plant-based diets, older age, or certain medications — and can cause fatigue, tingling, and a specific type of anemia. This test measures your B12 level.

Included Tests

Vitamin B12
Essential for nerve function, DNA synthesis and energy.
Vitamin B12
incl.in panel

What This Panel Measures

⚡
Energy & blood. B12 is needed to make healthy red blood cells; low levels can cause anemia and fatigue.
🧠
Nerve health. Deficiency can cause tingling, numbness, and memory or balance problems.

Who Should Get This Panel

  • You follow a vegetarian or vegan diet
  • You have fatigue, tingling, or numbness
  • You're over 50 or take acid reducers or metformin
  • You have a gut condition affecting absorption
  • You want to confirm your supplement is working

Conditions Screened

B12 deficiencyPernicious anemiaNutritional deficiency

Related Symptoms

FatigueTingling or numbnessBrain fogWeaknessBalance problems

When to Get Tested

Any time; no fasting is required. Consider testing if you have risk factors or symptoms, and again after starting supplementation to confirm your level has improved.

Understanding Your Results

Results post to your secure online account usually in 1–2 business days, with your value and the normal range. Borderline-low B12 can still cause symptoms, so results are best interpreted alongside how you feel and, when needed, folate and a CBC. Retest after supplementing to confirm improvement.

Frequently Asked Questions

Do I need to fast?
No fasting is required.
Should I stop my B12 supplement before testing?
If you want to know your baseline, it can help to hold high-dose supplements beforehand; if you want to confirm your supplement is working, test while taking it. Consistency matters most for tracking over time.
Is this billed to insurance?
No — you pay directly here, and nothing appears on your insurance record. Results go only to your secure account.

Pairs Well With — Same Blood Draw

Folate (Serum)
Works with B12; often checked together.
+ Add
CBC with Differential
Screens for B12-related anemia.
+ Add
Ferritin
Another common cause of fatigue and anemia.
+ Add
$ 49.00
✓ The price you see is the price you pay. No draw fees. No physician fees. No surprise bills. $ 49.00 is all-in.
Comparing prices? Some self-pay labs advertise a low number, then add ~$28 in "lab & physician fees" at checkout. We don't. What you see here is the whole cost.
⚡ We send your lab order electronically to the test center in 2–3 minutes. Nothing to print, nothing to bring — just walk in and sign in.
📍 Can you get tested nearby?

Test centers don’t accept payment — you pay securely here; the lab just does the draw.
⚡ Results 1–2 business days🧪 1 tests

What happens after you order?

  • 1Your lab order form & test code appear in your secure online account — with your test center’s address.
  • 2We send your lab requisition to the test center electronically.
  • 3Walk in & get tested — tests usually take 5 minutes or less.
📞 Need support? (866) 873-0879
$ 49.00all-in · no extra fees