Skip to main content
Thorne Biotin

Biotin

89Score
Grade A · capsule · 60 servings · $28.00

Biotin scores 89/100 (B grade). Strengths: 2 ingredients with Grade B evidence.

BiotinSkin / Hair

Score Breakdown

Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.

Evidence Qualityweight 25%
85/ 100
Dose Accuracyweight 20%
95/ 100
Bioavailabilityweight 20%
94/ 100
Transparencyweight 10%
90/ 100
Safetyweight 10%
96/ 100
Manufacturingweight 10%
82/ 100
Valueweight 5%
90/ 100

Ingredients per Serving

IngredientAmount
Biotin8 mg

Certifications & Testing

Gluten FreeSoy FreeDairy FreeNatural FlavorsNatural ColorsMade in USAGMP CertifiedThird-Party Contents Certified

Other Ingredients

Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Calcium Laurate, Silicon Dioxide

Recommended Use

Take 1 capsule one to two times daily or as recommended by your health-care practitioner.

Warnings

ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. PREGNANCY If pregnant, consult your health professional before using this product. INTERACTIONS Biotin supplementation can interfere with certain lab tests. Consult your health-care practitioner prior to having your blood drawn.

Frequently Asked Questions

What is Thorne Biotin's Formulate score?

Thorne Biotin scores 89 out of 100 (grade A) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.

What's in Thorne Biotin?

Each serving contains Biotin (8 mg). Serving size: One Capsule. 60 servings per container.

How do I take biotin?

Take 1 capsule one to two times daily or as recommended by your health-care practitioner.

Is Thorne Biotin third-party tested?

Thorne lists the following certifications and testing for this product: Gluten Free, Soy Free, Dairy Free, Natural Flavors, Natural Colors, Made in USA, GMP Certified, Third-Party Contents Certified.

Related Supplements

Track biotin in your stack

The Formulate desktop app lets you build a personalized supplement stack, flag dose overlaps and interactions, and keep every product scored against the latest evidence.

Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.