Order Homocysteine Blood Test from JustLabs for $23 ($41 all-in for a single-test order: $23 + one $18 lab & physician order fee per order). Price includes lab processing at Quest Diagnostics. No insurance required.
A blood test measuring homocysteine, an amino acid linked to cardiovascular risk and B vitamin status (B12, folate, B6).
Homocysteine is an amino acid that your body produces during protein metabolism. Normally, homocysteine is converted to other compounds using B vitamins (B12, folate, and B6). When these vitamins are deficient or when genetic factors interfere, homocysteine levels rise.
Elevated homocysteine (hyperhomocysteinemia) is associated with increased cardiovascular risk, blood clots, stroke, and cognitive decline. It may damage blood vessel walls and promote clot formation.
This test serves two purposes: assessing cardiovascular risk and detecting B vitamin deficiency. High homocysteine is often easily treatable with B vitamin supplementation.
Price
$23
All-in
$41
incl. $18 lab & physician fee
Results
2-3 business days
Fasting
8+ hrs
What's Measured
What This Test Measures
This test measures the concentration of homocysteine in your blood. Homocysteine is an amino acid produced when protein is metabolized. Elevated levels indicate either B vitamin deficiency (most common cause), genetic factors (MTHFR mutations), or increased cardiovascular risk.
Who Should Consider This Test
People with family history of early heart disease, those with unexplained blood clots, individuals with B12 or folate deficiency risk, people following vegan/vegetarian diets, those with MTHFR gene mutations, and anyone assessing cardiovascular risk factors.
Health Insights
Conditions Screened
Related Symptoms
When to Get Tested
Fasting for 8 hours is required for accurate results. Water is allowed. Test in the morning after an overnight fast.
Fasting Required
This test requires fasting for accurate results. Please follow these instructions:
- Do not eat or drink anything except water for 8-12 hours before your blood draw.
- Water is allowed and encouraged - stay hydrated!
- Schedule your lab visit in the morning for convenience.
- Continue taking any prescribed medications unless advised otherwise by your doctor.
Understanding Your Results
Normal homocysteine is typically 5-15 μmol/L. Levels 15-30 μmol/L are moderately elevated, >30 μmol/L is severely elevated. High levels often respond well to B vitamin supplementation (B12, folate, B6).
What to Expect
After placing your order, we send it straight to Quest Diagnostics — there is no consent form to sign and no partner email to wait for. Your requisition is usually ready to download from your dashboard within about an hour, and you can book your blood draw at any Quest Diagnostics location.
The blood draw typically takes just a few minutes. Results are usually available within 2-3 business days and will appear in your secure JustLabs dashboard.
Our results include reference ranges and easy-to-understand indicators showing whether your values are within normal limits.
How much does the Homocysteine test cost?
The Homocysteine test costs $23 at JustLabs — $41 all-in, since the $18 lab & physician order fee is charged once per order, however many tests you add. The price is fixed before your blood draw; no insurance or doctor visit needed.
| Option | Price | Order all-in | Notes |
|---|---|---|---|
| Homocysteine at JustLabsDrawn at Quest Diagnostics | $23 | $41 | Includes the one $18 fee, charged once per order |
Paying with an HSA or FSA? See which lab tests qualify
Frequently Asked Questions
Hospital cash price: $200–$400
$23
+ $18 order fee · $41 all-inOne $18 fee per order covers your Quest blood draw and the independent physician order, however many tests you add.
- Results in 2-3 business days
- Fasting required (8 hours)
- Physician order included
No insurance needed · HSA/FSA eligible
- Physician-ordered
- CLIA-certified Quest lab
- Drawn at Quest Diagnostics
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