Biotin Blood Test
The Vitamin B7 (Biotin) test measures the levels of biotin in the blood to check for deficiencies or excesses, which can affect metabolism, skin, hair, and neurological functions.
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How our test process works!
Overview
The Vitamin B7 (Biotin) test measures the level of biotin in the blood to assess deficiencies or excesses. Biotin is a water-soluble B-vitamin essential for metabolism, skin health, and hair growth. Deficiency can lead to symptoms like hair loss, skin rashes, and neurological issues.
Risk Assessment
Who Should Get Tested?
- Individuals with symptoms of biotin deficiency, such as:
- Hair thinning or loss
- Skin rashes (especially around the mouth, eyes, or nose)
- Brittle nails
- Fatigue
- Depression or neurological symptoms (numbness, tingling, seizures)
- Pregnant or breastfeeding women, as their biotin requirements increase
- People on long-term anticonvulsant therapy or antibiotics, which may interfere with biotin absorption
- Those with certain genetic disorders affecting biotin metabolism
- Individuals consuming excessive raw egg whites, which contain avidin, a protein that inhibits biotin absorption.
Normal Range
- Serum Biotin: 200 - 1200 ng/L (0.2 - 1.2 µg/L)
(Reference ranges may vary by lab, so consult your healthcare provider for specific interpretation.)
Interpretation of Results
| Biotin Level | Interpretation |
|---|---|
| Low | Indicates potential deficiency due to poor diet, malabsorption, pregnancy, or medication effects. May cause hair loss, skin issues, and neurological symptoms. |
| Normal | Suggests adequate biotin intake and metabolism. |
| High | Often due to supplementation rather than toxicity (biotin is water-soluble and excess is excreted). However, extremely high levels can interfere with lab tests. |
Sample Type
- Blood Sample (Serum or Plasma)
- Collected via venipuncture (from a vein in the arm).
- Requires no special preparation, but excessive biotin supplementation (≥5 mg/day) should be stopped at least 48 hours before the test to prevent false results.
Frequently Asked Question
VITAMIN B7/BIOTIN
Biotin Blood Test
The Vitamin B7 (Biotin) test measures the levels of biotin in the blood to check for deficiencies or excesses, which can affect metabolism, skin, hair, and neurological functions.
Covid Safety
Assured
Free Report
Counselling