Description

Biotin, a member of the B-vitamin family, is sometimes referred to as vitamin H because the German words for hair and skin are haar and haut. Biotin is an essential cofactor for numerous enzymes in the body involved in the metabolism of fats, carbs, and amino acids. Therefore, a low level of biotin can negatively affect the body in numerous ways.


Who can benefit from Thorne's Biotin

  • An individual taking an antibiotic that disrupts biotin synthesis in the gut
  • Anyone with a digestive condition that decreases the absorption of nutrients from food 
  • Those needing additional support for glucose metabolism*
  • People with an inherited enzyme deficiency

 

Signs of a low biotin level

  • Dry, scaly skin
  • Thin brittle nails
  • Dry, brittle hair
  • Hair loss
  • Cracks in the corners of the mouth
  • Swollen, painful tongue
  • Dry eyes


This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants, such as heavy metals, pesticides, and microorganisms.

Suggested 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.

FAQs
Frequently asked question

Is Thorne Biotin worth buying compared to other biotin supplements?

Thorne Biotin stands out for its high quality manufacturing standards, third-party testing, and pharmaceutical-grade ingredients. Unlike many generic options, Thorne products are NSF Certified for Sport and free from unnecessary fillers and additives. If you prioritize purity and transparency in your supplements, Thorne Biotin is a reliable investment for supporting hair, skin, nail, and metabolic health.

Where can I buy Thorne Biotin and what is the return policy?

Thorne Biotin is available directly through this website, ensuring you receive an authentic product. Purchasing from an authorized retailer protects your quality guarantee. If you are unsatisfied with your purchase, please review our return policy on the site for eligibility details. Buying directly also gives you access to customer support and any available promotions or subscription savings.

What is biotin and why is it important for the body?

Biotin is a B-vitamin, also known as vitamin H, that acts as an essential cofactor for enzymes involved in metabolizing fats, carbohydrates, and amino acids. Without adequate biotin, these metabolic processes can be disrupted, potentially affecting energy levels, hair, skin, and nails. Since the body cannot produce enough on its own, getting sufficient biotin through diet or supplementation is important.

Who should consider taking a biotin supplement?

People who may benefit from biotin supplementation include those taking antibiotics that disrupt gut biotin synthesis, individuals with digestive conditions affecting nutrient absorption, pregnant women, and anyone experiencing thinning hair or brittle nails. Those consuming a diet low in biotin-rich foods may also be at risk of deficiency. Consult your healthcare provider to determine if supplementation is right for you.

How long does it take to see results from taking biotin?

Results vary depending on your individual health status and the reason you are supplementing. Many people report noticeable improvements in hair and nail strength within 90 days of consistent use. Metabolic and energy-related benefits may be felt sooner. For best results, take biotin daily as directed and maintain a balanced diet to support overall nutrient absorption.

Are there any side effects or interactions I should know about before taking biotin?

Biotin is generally considered safe and well-tolerated at recommended doses. However, high-dose biotin supplementation can interfere with certain lab tests, including thyroid and cardiac biomarker tests, potentially producing false results. Always inform your healthcare provider that you are taking biotin before any bloodwork. If you are pregnant, nursing, or on medications, consult your doctor before starting supplementation.

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