No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

Biotin 5,000 mcg Ingredients & Drug Interactions

by Klaire Labs

Biotin 5,000 mcg label
See full label image
Capsule Category: Vitamin
No known interaction
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Biotin 5,000 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

The interaction bottom line No known interaction

Biotin 5,000 mcg is a dietary supplement by Klaire Labs 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.

Jump to a section

HelloPharmacist Scorecard of Biotin 5,000 mcg by Klaire Labs

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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 16, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: biotin, a B vitamin essential for the breakdown of fats, carbohydrates, and amino acids. Each capsule delivers 5,000 micrograms — a high dose well above what you'd get from food alone.

The inactive ingredients are microcrystalline cellulose, hydroxypropyl methylcellulose, water, and silicon dioxide, which make up the capsule and help it dissolve.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: biotin supplementation.
  • We looked for evidence on: Biotin deficiency, Brittle nails, hair health, skin health.
  • The strongest evidence on file: Biotin is rated "Likely Effective" for Biotin deficiency (Natural Medicines).
  • Also on file: Biotin is rated "Insufficient Reliable Evidence To Rate" for Brittle nails.

Biotin is likely effective for treating biotin deficiency, a rare condition. For other uses — multiple sclerosis and seborrheic dermatitis (a flaky scalp condition) — the evidence suggests it's probably not effective.

For alopecia areata (patchy hair loss), we don't yet have enough reliable evidence to rate it one way or the other.

The evidence, ingredient by ingredient Biotin

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Biotin is generally well tolerated, and excess amounts are simply removed through your urine. High-dose biotin has rarely caused mild diarrhea.

One unusual case report described severe inflammation of the heart and lung lining in an older person taking 10 mg of biotin daily along with other supplements and medications, but it's unclear whether biotin was responsible, and no similar cases have been reported since. Normal dietary amounts and prenatal vitamins that contain biotin are fine, but if you're considering a high-dose product like this one, talk it over with your doctor first.

Side effects, ingredient by ingredient Biotin

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented in our data for biotin. You're clear to combine it with medications without concern for drug interactions.

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.

If you have confirmed biotin deficiency, this supplement can help. For hair, skin, or neurological concerns, the evidence doesn't support biotin as effective.

Because it's a high-dose product, check with your doctor or pharmacist before you start — especially if you're pregnant, breastfeeding, or taking other supplements.

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 19, 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

At a glance

General information

Key facts about Biotin 5,000 mcg, straight from the product label.

Brand Klaire Labs
Barcode (UPC) 828054001312
Net contents 90 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD May 19, 2022
DSLD ID 264562
Product type Vitamin
Supplement form Capsule
Dietary claims / uses Nutrient, All Other
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free
From the label
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 5,000 mcg by Klaire Labs, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
90
UPC/BARCODE
828054001312
IngredientAmount% DV
Biotin5000 mcg16667%

Other ingredients: Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Water, Silicon Dioxide

Tap any ingredient to jump to its full detail below.

Label statements
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.
FDA Statement of Identity

Dietary Supplement

Precautions

Caution: If you are pregnant, nursing, have a medical condition, or taking prescription drugs, consult your physician before using this product.

Keep out of reach of children.

Do not use if shrinkwrap is broken or missing.

Formulation

Free of the following common allergens: Milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, corn, and yeast. Contains no artificial colors, flavors, or preservatives.

Produced under a strict quality management system in compliance with Good Manufacturing Practices (GMPs) and third-party quality certifications.

Suggested/Recommended/Usage/Directions

Suggested Use: 1 capsule daily with food or as directed by a healthcare professional.

Formula

Biotin is essential water-soluble B-vitamin.

Storage

Store in a cool, dry place (59 degrees F - 85 degrees F) away from direct light.

Brand IP Statement(s)

SFI

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Biotin 5,000 mcg by Klaire Labs label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Biotin 5,000 mcg label

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)
What’s inside

The Ingredients in Biotin 5,000 mcg by Klaire Labs

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container90 Amounts shown are per serving.

Biotin

No known
interactions
5000 mcg per serving Form: D-Biotin

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 & interactions

Other (inactive) ingredients: Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Water, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.

Interaction report

Biotin 5,000 mcg by Klaire Labs Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Biotin 5,000 mcg. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for Biotin 5,000 mcg, from the product label.

Klaire Labs

See all Klaire Labs products
Name
SFI USA
City
Reno
State
NV
ZipCode
89521
Web Address
Klaire.com
Pharmacist Counseling Corner

Biotin 5,000 mcg by Klaire Labs: Common Questions

Does Biotin 5,000 mcg by Klaire Labs interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Biotin 5,000 mcg. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Biotin 5,000 mcg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Will biotin help my hair grow or stop hair loss?
Biotin is often marketed for hair health, but the evidence doesn't support it for alopecia areata (patchy hair loss), and we don't have enough reliable data to know either way for other types of hair loss. If hair loss is a concern, talk with your doctor about what's actually driving it — that'll point you toward treatments that work.
Is it safe to take this much biotin?
Biotin is generally well tolerated at high doses because your body excretes excess in your urine. Mild diarrhea is rare. Still, because this is a 5,000 mcg dose — much higher than food provides — check with your doctor before starting, especially if you're pregnant or breastfeeding or already taking biotin supplements.
Can I take biotin if I'm pregnant or nursing?
Biotin is rated likely safe during pregnancy and lactation. Normal dietary amounts and prenatal vitamins containing biotin are appropriate, but if you're considering a high-dose supplement like this one, discuss it with your doctor first to make sure it's right for you.
Does biotin interfere with any medications?
No interactions are documented in our data. Biotin doesn't change how your medications work, so it's safe to combine with prescriptions from that standpoint — but always double-check with your doctor or pharmacist if you have other health concerns.
What is biotin and what does it do?
Biotin is a B vitamin that helps your body break down and use fats, carbohydrates, and amino acids. It's found in small amounts in foods like eggs, nuts, and fish, but this supplement delivers a much higher dose.
Can high-dose biotin cause side effects?
Side effects are rare. Mild diarrhea has been reported in a small number of people taking very high doses. One unusual case reported severe inflammation of the heart and lung lining in an older person taking 10 mg daily along with other supplements, but whether biotin was to blame is unclear.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Biotin 5,000 mcg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Biotin 5,000 mcg label
Go deeper

The Full Monographs Behind Biotin 5,000 mcg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Biotin

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 plenty from a normal diet, and true defi...

Read the full Biotin monograph →
Sources

Sources & How We Checked

Biotin 5,000 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.

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
  1. 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
  2. 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
  3. Mock DM, Quirk JG, Mock NI. Marginal biotin deficiency during normal pregnancy. Am J Clin Nutr 2002;75:295-9. PubMed
  4. 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

See these in context on the Biotin monograph →

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

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