Thorne Biotin
vs
NOW Foods Biotin
Supplement Comparison

  • Vitamin B7 (Biotin): Thorne Biotin has 60% more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 2 nutrients compared
Bar chart: per-serving label amounts and listed forms for Thorne Biotin vs NOW Foods Biotin.

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Frequently asked questions

Which active ingredients does Thorne Biotin have?

  • Vitamin B7 (Biotin)

Which active ingredients does NOW Foods Biotin have?

  • Vitamin B7 (Biotin) appears as D-Biotin

Which categories do Thorne Biotin and NOW Foods Biotin belong to?

  • Single Vitamin

What health concerns do Thorne Biotin and NOW Foods Biotin address?

  • Skin, Hair & Nail Health
  • Energy & Metabolism
  • Immune System Support

Which product has a higher amount of Vitamin B7 (Biotin) per serving?

  • Thorne Biotin has the highest total amount of Vitamin B7 (Biotin): 8000 mcg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Thorne Biotin: 1 capsule
    • NOW Foods Biotin: 1 capsule
  • Vitamin B7 (Biotin)
    • This supplement has 8000 mcg
    • Adequate Intake in men: 30 mcg
    • Adequate Intake in women: 30 mcg
    • Tolerable Upper Intake Level: Not established
  • Vitamin B7 (Biotin)
    • This supplement has 5000 mcg
    • Adequate Intake in men: 30 mcg
    • Adequate Intake in women: 30 mcg
    • Tolerable Upper Intake Level: Not established

Last updated: February 9, 2026

  • Sources & Methodology: Nutrient data and forms are taken directly from Supplement Facts labels. Reviewed and standardized by the VIOscan Research Team. Learn more on the Methodology page.
  • We show the Recommended Dietary Allowance (RDA) when available. If no RDA exists, we show the Adequate Intake (AI). Tolerable Upper Intake Levels (UL) are used for upper limits. Unless otherwise noted, RDAs shown correspond to healthy adults aged 19–50 years and are sex-specific. Separate values exist for 51–70 years and >70 years, and pregnancy and lactation are excluded. All values come from the Dietary Reference Intakes (DRIs) published by the National Academies of Sciences, Engineering, and Medicine (NASEM), Food and Nutrition Board (FNB).
  • Transparency: We’re funded by our users. We don’t have sponsors or affiliate links, and we don’t sell supplements.
  • Editorial standards: we provide independent, impartial and objective data analysis.
  • This analysis is for educational purposes only. It is not a substitute for medical advice.
  • Questions? Read our Frequently Asked Questions or contact us, we’re here to help.
  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team