Vitamin

Biotin

Biotin requires 30 mcg daily for adult women and 30 mcg for men.

Last reviewed: 2026-09-20Reviewed by: StackingRight clinical reviewPrimary source

What Biotin does

Cofactor for carboxylase enzymes in fat, glucose and amino-acid metabolism.

High doses interfere with several immunoassays, including troponin and thyroid tests.

How much you need

Reference intakes for Biotin in adults
MeasureAdult maleAdult female
Recommended intake30 mcg30 mcg
Upper intake levelNone established
Typical supplement dose1 capsule

Interactions involving Biotin

0 sourced rules

No interaction rules are currently recorded for Biotin. That does not mean none exist — it means none met the sourcing bar for inclusion.

Questions people ask about Biotin

Sources