Biotin and the hair

Biotin for Hair: Yes or No?

One of the top 50 questions I am asked is whether biotin supplements should be used. The short answer is really that there is no good evidence that biotin does much for most people. It is however, quite safe and overdosing is unlikely provided one sticks to 5000 mcg or less per say. 

Is anyone biotin deficient?

However, the following groups may be more likely to have biotin deficiency: 

1. individuals with intestinal issues,

2. women who are pregnant, 

3. individuals taking anti-seizure medications, chronic antibiotics, or isotretinoin

4. individuals who consume alcohol chronically

5. those with inborn errors of metabolism

6. the elderly 

7. those with extremes of poor diet

In those who are recommended to take biotin, type of biotin supplement does not appear to matter. 1000 mcg twice daily to up to 2500 mcg is appropriate dosing for most. Once should never exceed 5000 mcg. I always advise individuals to review this question with their physician an avoid unnecessary supplementation.