BioStacks
Natural Factors

Thyroid Health Formula, 60 Vegetarian Capsules

2 Capsules

iHerbAmazon

Best for

Brain

Ingredients (10)

Pantothenic Acid

100%

Dose

100 mg

Target

50–500 mg

Form

Premium

L-Tyrosine

100%

Dose

500 mg

Target

500–2000 mg

Form

—

Selenium

50%

Dose

50 mcg

Target

100–200 mcg

Form

Premium

Iodine

67%

Dose

100 mcg

Target

150–500 mcg

Form

Premium

Guggul Extract

100%

Dose

120 mg

Target

75–150 mg

Form

—

Other Ingredients (3)

Magnesium StearateLubricant

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

Microcrystalline CelluloseBinder

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

Capsule ShellCapsule

Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Products that cover similar health dimensions based on their ingredients.

ThyroSense

Natural Factors

ThyroSense

🧠 for Brain

58
Thyraid

Zahler

Thyraid

🧘 for Stress & Mood

54
Thyroid Energy

NOW

Thyroid Energy

🤰 for Pregnancy

74
Ortho Thyroid

Protocol For Life Balance

Ortho Thyroid

🤰 for Pregnancy

73
Thyroid Health Complex

Thorne

Thyroid Health Complex

🛡️ for Immune

82

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.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Terms of Service
  • Privacy 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
© 2026 BioStacks. All rights reserved. Not medical advice.