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Vitamin B7 (biotin)
Full ranking Dose tool Products (4,110)
Key facts
Daily Value (US FDA)30 mcg
Tolerable Upper Intake Level (UL)—
Median（Per day）150 mcgP5 15 – P95 5,000
Products4,110
Sources: https://ods.od.nih.gov/factsheets/Biotin-HealthProfessional/ · FDA DV 30 mcg (https://www.fda.gov/food/nutrition-facts-label/daily-value-nutrition-and-supplement-facts-labels); pre-2016 DV [300] (https://www.federalregister.gov/documents/2016/05/27/2016-11867/food-labeling-revision-of-the-nutrition-and-supplement-facts-labels); no UL set; hard_high=100000 per serving (UL x10 or market maximum), hard_low=DV/1000
Daily dose across products（mcg/day）
DV 30
4 mcglog scale · n=4,11015,750 mcg
Label data from official national databases and brand websites, as declared; not lab-verified.
Common forms
| Form | Products | Median | P5–P95 | Elemental fraction |
|---|---|---|---|---|
| D-biotin | 4128 | 150 mcg | 15 – 5,000 | — |
Top ranked
| Rank | Brand | Product | Per day | Score |
|---|---|---|---|---|
| 1 | Rexall | Biotin 1000 mcg | 2,000 mcg | 90.0 |
| 2 | Nature's Bounty | Biotin | 1,000 mcg | 88.0 |
| 2 | Spring Valley | Biotin 1,000 mcg | 5,000 mcg | 88.0 |
| 2 | CVS Health | Biotin 10,000 mcg | 10,000 mcg | 88.0 |
| 2 | Spring Valley | Biotin 10,000 mcg | 50,000 mcg | 88.0 |
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.