Biotin
Biotin is a low-risk supplement with an RDA of 30 mcg and a tolerable upper intake level (UL) of 900 mcg per day according to NIH/NASEM standards. All 3 regional standards agree on these limits. Use NutriAudit to check if your supplement stack keeps this ingredient within safe limits.
Quick take
Biotin sits in the B Vitamins category. This page consolidates 3 regional standards, and the numbers are broadly aligned, so the bigger question is whether your total dose stays in range.
For this ingredient, the main task is usually not a binary yes/no question but checking the label dose, your total intake, and possible overlap with the rest of the stack.
Taking multiple supplements? Check Biotin for overlap
If Biotin appears on two product labels, enter each daily amount and check the combined label total.
Check Biotin across my supplementsFree. No account required.
Regional Reference Values
| Region | Organization | RDA | Upper Limit (UL) | Unit |
|---|---|---|---|---|
| 🇺🇸 United States | FDA | 30 | 900 | mcg |
| 🇪🇺 Europe | EFSA | 30 | 900 | mcg |
| 🇦🇺 Australia | TGA | 30 | 900 | mcg |
RDA = Recommended Daily Allowance (adequate intake for most adults). UL = Tolerable Upper Intake Level; some authorities have not established one.
How to use this page
First match your product label against the dose table above, then check whether the known interaction list includes anything in your current stack.
If you are taking multiple supplements, the safest approach is usually to audit the whole stack instead of judging a single bottle in isolation.
Frequently Asked Questions
How much Biotin is too much?
FDA lists a formal upper limit (UL) of 900mcg per day for Biotin. Other regions may use a different value or have no established UL.
What is the recommended daily dose of Biotin?
The RDA for Biotin is 30mcg per day for most adults. This amount is sufficient to meet the needs of 97-98% of healthy individuals.
Are you taking Biotin?
Check if your supplement stack keeps Biotin within safe limits.
Audit My SupplementsDisclaimer: NutriAudit is a decision-support tool designed to help you review your supplement stack for potential duplicate, conflicting, or excessive ingredients. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making changes to your supplement routine, especially if you are pregnant, nursing, taking medications, or have a medical condition.
Uses cited public reference data where the current dataset has a verified entry.