Hospital Lab
$280
cash pay
Other Labs
$109
+ lab fees
TestWell
$64.99
+ $6 lab fee
Selenium is a trace mineral that functions as a component of antioxidant enzymes and is essential for thyroid hormone metabolism, DNA synthesis, and immune function. Both deficiency and toxicity can cause health problems. Selenium levels vary by geographic region based on soil content. Testing is recommended for those with thyroid conditions, autoimmune disorders, or unexplained fatigue.
Vitamin and nutrient testing identifies deficiencies that can drive fatigue, immune dysfunction, neurological symptoms, and long-term disease risk — and confirms that supplementation is working.
Anyone with restrictive diets (vegan, low-fat, low-carb), malabsorption conditions, fatigue, hair loss, mood changes, or currently supplementing and wanting to verify dosing.
Sample Type
Blood draw
Fasting
Not required
Results In
3–7 business days
Performed At
Quest or Labcorp
Your Selenium results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 3–7 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
Your Selenium results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 3–7 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
No fasting required.
No fasting required.
TestWell Price
$64.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Better value: the Vitamin & Mineral Deficiency Panel
Save $106.92This test is part of the Vitamin & Mineral Deficiency Panel — 9 tests · 9 biomarkers for $189.99, $106.92 less than à la carte.
$189.99$296.91
9 tests · 9 biomarkers
Frequently ordered together
Customers who ordered Selenium also added these for a more complete health picture.
Not sure where to start?
Selenium
$64.99