Biotin 300 mcg Ingredients & Drug Interactions
by Major
What is this page for?
First and foremost: checking Biotin 300 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 300 mcg is a dietary supplement by Major 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 300 mcg by Major
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, a B vitamin at 300 micrograms per dose. Biotin plays a role in converting food into energy and is involved in hair, skin, and nail health.
The tablet also contains several inactive ingredients — microcrystalline cellulose, stearic acid, vegetable magnesium stearate, croscarmellose sodium, silicon dioxide, and pharmaceutical glaze — which help form and stabilize the tablet.
Does it work?
Strong evidence
Biotin is likely effective for treating biotin deficiency, which can occur from certain medications or rare genetic conditions. For multiple sclerosis and seborrheic dermatitis (a flaky scalp condition), the evidence suggests it's probably not effective.
For hair loss (alopecia areata), there isn't enough reliable evidence yet to know whether it works.
How safe is it?
Well-documented data
Biotin is generally well tolerated, even at fairly high doses, because your body removes excess amounts through urine. At this 300 mcg dose, side effects are rare.
A very small number of people taking high-dose biotin (much higher than this product) reported mild diarrhea, and one isolated case report linked biotin combined with another supplement to an inflammatory reaction, though the exact cause was unclear. Normal dietary and supplement amounts like this one are considered safe, but if you're thinking about taking much higher doses down the road, talk it over with your doctor first.
Meds to double-check
No known interactions
No interactions are documented in our data for the ingredients we could check.
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 biotin supplement is straightforward: it's a single B vitamin at a modest dose, generally well tolerated, and useful if you have a biotin deficiency. If you're taking it for hair, skin, or nails without a confirmed deficiency, the evidence doesn't yet support that use.
Check with your doctor or pharmacist before starting, especially if you're pregnant, nursing, or taking any medications — though no interactions are documented, they'll know your full health picture.
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 May 28, 2019.
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 300 mcg, straight from the product label.
| Brand | Major |
|---|---|
| Barcode (UPC) | 309045433607 |
| Net contents | 100 Tablet(s) |
| Market status | On market |
| Date entered into DSLD | May 28, 2019 |
| DSLD ID | 202028 |
| Product type | Vitamin |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), 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 300 mcg by Major, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Biotin | 300 mcg | 100% |
Other ingredients: Microcrystalline Cellulose, Stearic Acid, Vegetable Magnesium Stearate, Croscarmellose Sodium, Silicon Dioxide, Pharmaceutical Glaze
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.
General
Re-Order No. 700253 M-92 Rev 07/15
General Statements
Potency guaranteed Supports energy production
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
Directions: For adults, take one (1) tablet daily, preferably with a meal.
Precautions
As a remainder, discuss the supplements and medications you take with your health care providers. Warning: If you are pregnant, nursing or taking any medications, 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.
Formula
Biotin is essential for the intermediate metabolism of carbohydrates, proteins and fats.
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.
Formulation
Free of: Yeast, wheat, milk or milk derivatives, lactose, sugar, preservatives, soy, artificial color, artificial flavor, sodium (less than 5 mg per serving).
Storage
Store in a dry place and avoid excessive heat.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Biotin 300 mcg by Major 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 300 mcg by Major
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 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: Microcrystalline Cellulose, Stearic Acid, Vegetable Magnesium Stearate, Croscarmellose Sodium, Silicon Dioxide, Pharmaceutical Glaze. These complete the product’s ingredient list but are not active constituents.
Biotin 300 mcg by Major Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Biotin 300 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 300 mcg, from the product label.
Major
See all Major products- Name
- Major Pharmaceuticals
- Street Address
- 31778 Enterprise Drive
- City
- Livonia
- State
- MI
- ZipCode
- 48150
- Phone Number
- (800) 616-2471
Biotin 300 mcg by Major: Common Questions
Does Biotin 300 mcg by Major interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is biotin safe to take while pregnant or breastfeeding?
Can biotin help with hair loss?
What does biotin actually do in the body?
Are there any side effects from this dose of biotin?
Does this tablet have any fillers?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Biotin 300 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 300 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 300 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