BioStacks
Natural Factors

ThyroSense

2 Capsules · 30 servings

iHerbAmazon
Track this supplement · Get started free

What it does

A combination of 8 label ingredients.

Selenium

selenomethioninePremium

Supports normal thyroid hormone metabolism and enzymes that protect cells from oxidative damage.

Guggul

Form not confirmedGrade —

A standardized guggul extract did not lower cholesterol in one trial of adults with elevated cholesterol; LDL increased and some participants developed rashes.

Brain
Ask AI about this product

Ingredients (8)

Other ingredients

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.

Lab testing

How to take it

With food

Tyrosine does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.

Keep it away from protein-heavy meals
Space it a couple of hours from Iron

On the label

2 capsules 1-2 times per day or as directed by a health professional.

Price check

$10.47

$0.35 / serving

$10$20$50$100

Cheaper than 97% of 47 brain supplements

Similar products

Thyroid Health Formula, 60 Vegetarian Capsules

Natural Factors

Thyroid Health Formula, 60 Vegetarian Capsules

🧠 for Brain

56
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 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.

Not medical advice. Consult your healthcare professional.

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.