Biotin Blood Test, from our experts to you.Dr Sam Rodgers MBBS, MRCGP
Chief Medical Officermeet our doctors
What is biotin?
Biotin, or vitamin H, is an important compound found in the blood and is crucial for helping the liver, eyes and nervous system to function. It also has a role in keeping hair and nails healthy.
How to prepare for your test?
Prepare for your Biotin Blood Test by following these instructions. You should take this test before you take any medication or vitamin/mineral supplements. Do not take biotin supplements for two days before this test, discuss this with your doctor if it is prescribed.