BioStacks
Nature's Bounty

Hair, Skin & Nails 3000 mcg Biotin

3 Caplets · 20 servings · $0.42/serving

iHerbAmazon
51 / 100Average

Best for

DentalImmuneBone & Joint

Score Breakdown

Formulation
58
Safety
82
Final score
51/100

Ingredients (23)

Vitamin D

100%

Dose

1000 IU

Target

1000–5000 IU

Form

Premium

Vitamin B6

100%

Dose

5 mg

Target

1.3–25 mg

Form

Premium

Biotin

100%

Dose

3000 mcg

Target

1000–5000 mcg

Form

—

Niacin

100%

Dose

25 mg

Target

25–500 mg

Form

Standard

Pantothenic Acid

30%

Dose

15 mg

Target

50–500 mg

Form

Premium

Other Ingredients (5)

MannitolSweetener

A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at higher doses. Supplement amounts are typically small, but individuals with IBS or sugar alcohol sensitivity may react even at low doses.

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

Natural Palm Leaf GlazeCoating

A plant wax from the carnauba palm leaf used as a tablet glaze and polish

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in 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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