Vitamin B6 Blood Test

Compare labs

Feature	Labcorp	Quest Diagnostics
Price	$66.49	$44.49
Results in	~6 business days	~5 business days
Sample type	Blood Plasma	Blood Plasma
Require fasting	No	Yes

About the test

Vitamin B6 is a water-soluble vitamin essential for amino acid metabolism, neurotransmitter synthesis, and immune function. Deficiency or excess can impact nerve health, mood regulation, and energy production.

Included biomarkers & Reference ranges

Biomarker	Reference range
Vitamin B6 A B vitamin involved in amino acid metabolism, red blood cell production, and nervous system function.	2.1–21.7 ng/mL

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

Preparation

Labcorp lists no special preparation for this test.

Overnight fasting is required.
Fasting before a blood draw means you don't eat or drink anything except water.
Your doctor should provide any special instructions related to fasting for your test. Always follow your doctor's instructions.

How it works

1. Order online No referral or insurance
2. Get a requisition By email in 24–72 hours
3. Visit a draw center Bring a matching photo ID
4. Get results Securely by email

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Consultations

Not sure how to read your results? We can help.

Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.

Book a specialist