BioStacks
Natrol

Biotin, Fast Dissolve, Strawberry, 10,000 mcg

1 Tablet · 60 servings · $0.16/serving

iHerbAmazon

Best for

Hair

Ingredients (1)

Biotin

100%

Dose

10000 mcg

Target

1000–5000 mcg

Form

—

Other Ingredients (5)

CarboxymethylcelluloseThickener

Carboxymethylcellulose was the second emulsifier (with polysorbate 80) in Chassaing et al. 2015 (Nature, PMID 25731162), which showed mucus-barrier thinning, a microbiota shift toward pro-inflammatory species, low-grade inflammation, and metabolic syndrome in mice. Chassaing 2022 (Gastroenterology, PMID 34774538) tested CMC directly in a randomized controlled human feeding trial and found reduced microbial diversity and bacterial encroachment into the normally sterile mucus layer in a susceptible subset of participants. EFSA's 2018 re-evaluation could not establish a safe level due to data gaps. For a purely textural excipient, the gut-barrier risk profile is unfavorable when safer thickeners are widely available.

XylitolSweetener

A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at moderate doses (>10-20g/day), though supplement amounts are typically small. Extremely toxic to dogs — households with pets should store securely.

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Tapioca DextrinCarrier

A starch hydrolysate from tapioca used as a carrier and flow agent

CrospovidoneDisintegrant

Cross-linked synthetic polymer used as a tablet disintegrant to help tablets break apart quickly in the stomach

How to Take It

Take it anytime

Timing doesn't matter — but stop taking it 2–3 days before any blood test. Biotin skews thyroid and troponin lab results.

With or without food

On the label

Adults, take 1 tablet daily. Dissolve in mouth or chew before swallowing. No water necessary.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$9.52

$10$20

Cheaper than 81% of 140 vitamin B7 supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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