BioStacks
Windmill

Biotin 1000 mcg

1 Tablet · 60 servings · $0.13/serving

iHerbAmazon

Best for

Hair

Ingredients (2)

Biotin

100%

Dose

1000 mcg

Target

1000–5000 mcg

Form

—

Calcium

70 mg

Trace amount — not scored

Other Ingredients (10)

TalcAnti-caking

IARC classifies cosmetic-grade talc not containing asbestos as Group 2B (possibly carcinogenic to humans); perineal talc use as Group 2A (probably carcinogenic). Johnson & Johnson voluntarily withdrew talc-based baby powder from US/Canada in 2020 and globally in 2022 after extensive litigation tied to ovarian-cancer and mesothelioma cases. The 2018 FDA contamination survey found asbestos in 9 of 52 cosmetic talc products tested. As a supplement excipient talc is a pure manufacturing convenience — no nutritional or functional benefit to the user — so the asbestos-exposure risk has no offsetting upside. Safer alternatives (silicon dioxide, microcrystalline cellulose, rice hulls) are widely available.

Magnesium StearateLubricant

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

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

Calcium CarbonateBuffer

Common calcium salt used as a buffering agent, filler, or mineral fortification in supplements

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

HypromelloseCapsule

Plant-derived capsule material from cellulose

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

Take 1 tablet daily as a dietary supplement or as directed by a healthcare professional.

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

Price Check

$7.99

$10$20$50

Cheaper than 94% of 148 vitamin B7 supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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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