Extra Strength Biotin 10 mg (10,000 mcg) Ingredients & Drug Interactions
by NOW
What is this page for?
First and foremost: checking Extra Strength Biotin 10 mg (10,000 mcg) against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Extra Strength Biotin 10 mg (10,000 mcg) is a dietary supplement by NOW with 1 active ingredient. Its ingredients are commonly taken for hair growth and thinning hair, brittle nails, skin health.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of Extra Strength Biotin 10 mg (10,000 mcg) by NOW
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains one active ingredient: biotin (also called vitamin B7), supplied at 10,000 micrograms per capsule. Biotin is a B vitamin that plays a role in how your body processes fats, carbohydrates, and amino acids.
The capsule also contains inactive ingredients—rice flour, hypromellose (a capsule material), silicon dioxide, and stearic acid—that help deliver the biotin.
Does it work?
Strong evidence
Biotin is likely effective for treating biotin deficiency, a genuine but uncommon condition. For other uses listed here — multiple sclerosis, seborrheic dermatitis (a scaly skin condition), and hair loss (alopecia areata) — the evidence doesn't support its use.
The data rates it possibly ineffective for MS and seborrheic dermatitis, and there isn't reliable evidence one way or the other for alopecia areata. If you're taking this supplement for one of those conditions, talk with your doctor about whether it's the right choice for you.
How safe is it?
Well-documented data
Biotin is generally well tolerated, even at fairly high doses, because your body excretes excess through urine. Mild diarrhea has been reported rarely with high-dose biotin; in one study, two patients taking 300 mg daily experienced transient mild diarrhea.
One isolated case report linked a combination of biotin 10 mg with pantothenic acid (and concurrent medication use) to a rare inflammatory condition, but no causal link was proven and no similar cases have been reported since. During pregnancy and lactation, dietary and supplement amounts of biotin are likely safe, though the safety data advises discussing high-dose products with your doctor first.
Meds to double-check
No known interactions
No interactions are documented in our data for biotin. That said, if you take any prescription medications and want complete peace of mind, use the search tool on this page to check your exact drugs before you start.
The bottom line
Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. No medication interactions are currently documented, and safety information is well characterized.
This supplement makes sense if you have an actual biotin deficiency, though that's rare. If you're considering it for hair loss, seborrheic dermatitis, or multiple sclerosis, the evidence doesn't support its use for those purposes.
Because it's a high-dose product, talk with your doctor or pharmacist before you start — they know your full health picture and can help you decide whether it's right for you.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jun 20, 2024.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Extra Strength Biotin 10 mg (10,000 mcg), straight from the product label.
| Brand | NOW |
|---|---|
| Barcode (UPC) | 733739004796 |
| Net contents | 120 Veg Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jun 20, 2024 |
| DSLD ID | 314311 |
| Product type | Vitamin |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Halal, Gluten Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Extra Strength Biotin 10 mg (10,000 mcg) by NOW, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Biotin | 10 mg | 33333% |
Other ingredients: Rice Flour, Hypromellose, Silicon Dioxide, Stearic Acid
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions
Suggested Usage: Take 1 capsule daily with a meal.
Formula
Biotin is a water-soluble vitamin necessary for normal growth and body function. Biotin functions as a key regulatory element in gluconeogenesis, fatty acid synthesis, and in the metabolism of some amino acids. Alongside its role in energy production, biotin enhances the synthesis of certain proteins. In addition, biotin promotes healthy immune system function and plays a critical role in skin health.
Triangle K (Kosher)
This extra strength product is 10 mg Biotin as compared to our other Biotin products - 1 mg Biotin and 5 mg Biotin.
Crescent H (Halal)
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Precautions
Caution: For adults only. Keep out of reach of children.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
This product contains Biotin which may interfere with some blood test results. Go to nowfoods.com/biotinlab for details.
Not manufactured with wheat, gluten, soy, corn, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Formulation
Natural color variation may occur in this product.
Energy production Supports amino acid metabolism Promotes normal immune function
Non-GMO
Vegetarian/vegan
Not manufactured with wheat, gluten, soy, corn, milk, egg, fish, shellfish, tree nut or sesame ingredients.
Made and quality tested in the USA with globally sourced ingredients.
FDA Statement of Identity
A Dietary Supplement
Seals/Symbols
Triangle K (Kosher)
Crescent H (Halal) GMP Quality Assured
General Statements
Vitamins Family owned since 1968.
Storage
Store in a cool, dry place after opening.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Extra Strength Biotin 10 mg (10,000 mcg) by NOW label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in Extra Strength Biotin 10 mg (10,000 mcg) by NOW
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Veg Capsule(s) Dosage formCapsule Servings per container120 Amounts shown are per serving.
Biotin
No knowninteractions
Biotin (vitamin B7) is a water-soluble vitamin your body needs to turn food into energy and to support healthy hair, skin, and nails. Most people get...
Biotin monograph & interactionsOther (inactive) ingredients: Rice Flour, Hypromellose, Silicon Dioxide, Stearic Acid. These complete the product’s ingredient list but are not active constituents.
Extra Strength Biotin 10 mg (10,000 mcg) by NOW Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Extra Strength Biotin 10 mg (10,000 mcg). This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for Extra Strength Biotin 10 mg (10,000 mcg), from the product label.
NOW
See all NOW products- Name
- NOW FOODS
- Street Address
- 395 S. Glen Ellyn Rd.
- City
- Bloomingdale
- State
- IL
- ZipCode
- 60108
- Web Address
- nowfoods.com
Extra Strength Biotin 10 mg (10,000 mcg) by NOW: Common Questions
Does Extra Strength Biotin 10 mg (10,000 mcg) by NOW interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is biotin safe during pregnancy and breastfeeding?
What is biotin and what does it do in my body?
Will biotin help my hair grow or stop hair loss?
Can biotin cause side effects?
Do I need to take biotin supplements, or is food enough?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Extra Strength Biotin 10 mg (10,000 mcg) is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Extra Strength Biotin 10 mg (10,000 mcg)’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Extra Strength Biotin 10 mg (10,000 mcg)'s label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 4 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Biotin 4 references
- Debourdeau PM, Djezzar S, Estival JL, et al. Life-threatening eosinophilic pleuropericardial effusion related to vitamins B5 and H. Ann Pharmacother 2001;35:424-6. DOI
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (2000). Washington, DC: National Academy Press, 2000. Available at: http://b
- Mock DM, Quirk JG, Mock NI. Marginal biotin deficiency during normal pregnancy. Am J Clin Nutr 2002;75:295-9. PubMed
- Sedel F, Papeix C, Bellanger A, Touitou V, Lebrun-Frenay C, Galanaud D, et al. High doses of biotin in chronic progressive multiple sclerosis: a pilot study.Mult Scler Relat Disord. 2015;4(2):159-69. doi: 10.1016/j.msard.2015.01.005. PubMed
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC