Is 5000 mcg of Biotin safe?

This is 166.7× the recommended daily intake of 0.03 mg. While above typical doses, it may still be within safe limits (UL: None mg).

Biotin by MRM Nutrition

100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
100% of ingredients have research evidence

A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Biotin is a B-vitamin that supports the metabolism of fatty acids and amino acids. Research provides limited evidence for its effectiveness in improving nail and hair health in healthy individuals. The ingredient is generally considered safe for consumption.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Open Full PDF View on NIH DSLD →

Details

Label Data

1 Vegan Capsule(s)

Serving Size

Servings

Vitamin

Product Type

100%

Evidence Coverage

Ingredients

Supplement Facts — Evidence Check

Biotin

5000 mcg (16670% DV)

166.7× RDA — above typical dose 27 studies (A:0, B:11)

Other Ingredients

Dicalcium Phosphate Rice Flour Cellulose Capsule

Claims

Label Claims — Verification

Unverified All Other

Unverified Structure/Function

Info

Product Information

Directions for Use

Suggested usage: Take 1 capsule per day with a meal or as directed by your qualified healthcare provider.

Formulation Notes

For healthy hair, skin & nails Supports cellular energy

Vegan

Non-GMO

Hair, skin & nails

Contains no added milk, egg, peanut, tree nut, fish, shellfish, soy, wheat, gluten or yeast ingredients.

Additional Information

Made from recycled materials

Vegan

Metadata

Product Details

UPC / SKU6 09492 81013

DSLD Entry Date2024-09-25

Product TypeVitamin

FormCapsule

BrandMRM Nutrition

DSLD ID319064

Data Updated2026-04-11

Research

Research Evidence

Research Sources

Avg Quality

Meta Analysis

Systematic Review

Rct

Clinical Trial

Regulatory Source

Openfda Safety

B Pentasaccharides for the treatment of deep vein thrombosis

Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI

B Quantitative comparison of the efficacy of clinical drug treatments for primary progressive multiple sclerosis

Meta Analysis Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2023 PubMed DOI

B Dietary interventions for multiple sclerosis-related outcomes

Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI

B Interventions for infantile seborrhoeic dermatitis (including cradle cap)

Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI

B Effect of varicocelectomy on sperm deoxyribonucleic acid fragmentation rates in infertile men with clinical varicocele: a systematic review and meta-analysis

Meta Analysis Fertility and sterility 2021 PubMed DOI

B Effect of feeding biotin on milk production and hoof health in lactating dairy cows: a quantitative assessment

Meta Analysis Journal of dairy science 2011 PubMed DOI

B Factitious Graves' Disease Due to Biotin Immunoassay Interference-A Case and Review of the Literature

Systematic Review The Journal of clinical endocrinology and metabolism 2016 PubMed DOI

B Effect of biotin on milk performance of dairy cattle: a meta-analysis

Meta Analysis Journal of dairy science 2011 PubMed DOI

B PROVIT: Supplementary Probiotic Treatment and Vitamin B7 in Depression-A Randomized Controlled Trial

Rct Nutrients 2020 PubMed DOI

B High-dose biotin for multiple sclerosis: A systematic review and meta-analyses of randomized controlled trials

Meta Analysis Multiple sclerosis and related disorders 2021 PubMed DOI

View all evidence for Biotin →

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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.