Biotin (Vitamin B8 / B7)
Biotin powers fatty acid synthesis and helps maintain healthy keratin structure in hair, nails, and skin.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
200 – 1000 ng/L
200 – 1000 ng/L
200 – 1000 ng/L
What does a low result mean?
A modest dip can occur with altered gut microflora or high intake of raw egg whites (avidin binding).
What does a high result mean?
A high level is very common with beauty supplements and can occasionally cross-interfere with laboratory immunoassay tests.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Should I pause biotin supplements 48 hours prior to thyroid hormone blood tests?
- Does this confirm ample availability for healthy hair and nail growth?
- Is follow-up testing suggested?
Do you have a full blood test report?
Upload your lab document (PDF or image) to get an instant, clear explanation for every biomarker at once.
Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.