Is ug the same as mcg?
Yes, both mean micrograms. The two ways of writing it are why the strengths look inconsistent.
Can biotin affect blood test results?
Yes – high strengths can interfere with some thyroid and cardiac tests. Tell your GP or nurse that you take it; you may be asked to stop a few days before.
How long before I see a difference in hair or nails?
Months rather than weeks. They grow slowly and no supplement changes that.
Do I need a high strength?
Not necessarily. Deficiency is rare and most people get enough from food, so a higher number is not automatically better value.
