Biotin 1000 mcg Ingredients & Drug Interactions
by Rexall
What is this page for?
First and foremost: checking Biotin 1000 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
Biotin 1000 mcg is a dietary supplement by Rexall 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 Biotin 1000 mcg by Rexall
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
Rexall Biotin 1000 mcg is a single-ingredient supplement: one 1000-microgram (1 mg) dose of biotin per tablet. Biotin is a B vitamin (specifically B7) that your body needs to help convert food into energy and keep your skin, hair, and nails healthy.
The tablet also contains inactive ingredients — calcium carbonate, cellulose, and silica — which help hold the pill together.
Does it work?
Strong evidence
The evidence we hold shows that biotin is likely effective for treating biotin deficiency. For other uses — multiple sclerosis, seborrheic dermatitis (a flaky skin condition), and hair loss (alopecia areata) — the research is either insufficient to say whether it works or suggests it may not.
If you're taking this for one of those other reasons, talk with your doctor about whether the science supports it for your situation.
How safe is it?
Well-documented data
Biotin is generally well tolerated, even at fairly high doses, because your body removes what it doesn't use in the urine. High-dose biotin has rarely caused mild diarrhea.
One unusual case report from France described a serious lung and heart lining inflammation in a patient taking 10 mg of biotin daily (much higher than this 1 mg dose) along with other supplements and medications, but no similar cases have been reported since, and it's unclear what caused it. During pregnancy and breastfeeding, biotin is likely safe.
The amounts in food and prenatal vitamins are appropriate, but because this is a higher-dose supplement, check with your doctor before starting it if you're pregnant or nursing.
Meds to double-check
No known interactions
No interactions are documented in our data for the biotin in this product. Check with your doctor or pharmacist about your specific medications if you want to be certain.
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 product is a straightforward biotin supplement most useful if you have a confirmed biotin deficiency. If you're taking it for hair, skin, nails, or another condition, talk with your doctor first about whether the evidence supports that use.
Since no drug interactions are documented, it won't interfere with your medications — but always mention new supplements to your own pharmacist or doctor, especially if you're pregnant, nursing, or taking high-dose products.
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 Sep 22, 2022.
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 Biotin 1000 mcg, straight from the product label.
| Brand | Rexall |
|---|---|
| Barcode (UPC) | 301220467339 |
| Net contents | 60 Coated Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Sep 22, 2022 |
| DSLD ID | 276333 |
| Product type | Vitamin |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free, Dairy Free, Sugar 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 Biotin 1000 mcg by Rexall, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Biotin | 1000 mcg | 333% |
Other ingredients: Calcium Carbonate, Cellulose, Silica, Contains <2% of:
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.
Formula
Important facts you should know Biotin is an essential B vitamin that is involved in the intermediate metabolism of carbohydrates.
Formulation
Biotin also assists in protein and fat metabolism and supports healthy skin, hair and nails.
Supports healthy hair, skin & nails
No gluten, no yeast, no wheat, no milk or milk derivatives, no lactose, no sugar, no preservatives, no soy, no artifiical color, no artifiical flavor, no sodium.
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
Warning: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
Discontinue use and consult your doctor if any adverse reactions occur.
Keep out of reach of children.
Tamper resistant: Do not use if seal under cap is broken or missing.
As a reminder, discuss the supplements and medications you take with your health care providers.
Storage
Store at room temperature and avoid excessive heat.
Brand IP Statement(s)
Since 1903 Rexall
Since 1903 Rexall is a registered trademark of Rexall Sundown, Inc.
FDA Statement of Identity
Dietary Supplement
General Statements
100% satisfaction guaranteed
Suggested/Recommended/Usage/Directions
Directions: For adults, take one (1) tablet up to two times daily, preferably with meals. As a reminder, discuss the supplements and medications you take with your health care providers.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Biotin 1000 mcg by Rexall 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 Biotin 1000 mcg by Rexall
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container60 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: Calcium Carbonate, Cellulose, Silica, Contains <2% of:. These complete the product’s ingredient list but are not active constituents.
Biotin 1000 mcg by Rexall Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Biotin 1000 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 Biotin 1000 mcg, from the product label.
Rexall
See all Rexall products- Name
- Dolgencorp, LLC
- Street Address
- 100 Mission Ridge
- City
- Goodlettsville
- State
- TN
- ZipCode
- 37072
- Phone Number
- 1-866-473-9255
- Web Address
- Rexall.com
Biotin 1000 mcg by Rexall: Common Questions
Does Biotin 1000 mcg by Rexall interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will biotin help my hair grow or improve hair loss?
Can I take this while pregnant or breastfeeding?
What are the side effects?
Will biotin help with my skin condition?
Is biotin safe to take long-term?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Biotin 1000 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 Biotin 1000 mcg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Biotin 1000 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