BioStacks
GNC

Inositol 500 mg

1 Tablet · 100 servings · $0.20/serving

iHerbAmazon

Every active here is dosed below the amount studied to work. See how each one compares in the breakdown below.

Best for

Hormones

Ingredients (1)

Inositol

25%

Dose

500 mg

Target

2000–4000 mg

Form

—

Other Ingredients (6)

Rice FlourFiller

Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.

Magnesium StearateLubricant

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

Hydroxypropyl CelluloseBinder

An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

PolyvinylpyrrolidoneBinder

A synthetic polymer used as a tablet binder and film former

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Take it anytime

Trials dose 2 g twice daily — split it morning and evening rather than taking it all at once.

With or without food

On the label

As a dietary supplement, take one or two tablets daily.

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

Price Check

$19.99

$10$20$50

Near the median of 55 inositol supplements

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Inositol Powder

AOR Advanced Orthomolecular Research

Inositol Powder

⚖️ for Hormones

85
Inositol SAP

NFH

Inositol SAP

⚖️ for Hormones

85
Inositol

Pure Encapsulations

Inositol

⚖️ for Hormones

85
100% Pure Inositol Powder

Swanson

100% Pure Inositol Powder

⚖️ for Hormones

85
Inositol Powder

Vital Nutrients

Inositol Powder

⚖️ for Hormones

84

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.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • Manifesto
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart

Free Tools

  • Interaction Checker
  • Dose Checker
  • Form Comparison

Field Guides

  • Magnesium for sleep
  • Reading labels
  • Interaction checker
  • Dose checker
  • Harmful ingredients
  • Proprietary blends
  • Stack building
  • Scan without barcode
  • All guides →
© 2026 BioStacks. All rights reserved. Not medical advice.