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Thyroid Health Formula

Natural Factors
4.8
★ ★ ★ ★ ★
(3629 ratings)
Tyrosine 500 mg
Vitamin B5 100 mg
Ashwagandha 150 mg
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Score91

A targeted nutritional formula using iodine and amino acids to support metabolic energy and brain health.

How scoring works
Quantity:60 Capsule(s) • (30 servings)
Goals:
Brain Health

Score 91

A targeted nutritional formula using iodine and amino acids to support metabolic energy and brain health.

How scoring works
$10.47($0.34 per serving)
Vitacost
$ 11.53
Walmart
$ 10.47
iHerb
$ 10.47
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Analysis

This supplement provides a balanced mix of iodine, selenium, and L-tyrosine to support the core of your body's metabolic energy pathways. The inclusion of ashwagandha helps maintain neurological resilience, making it easier to stay focused and energized during busy days.

With added copper and manganese, the formula ensures that the enzymatic processes involved in energy production have the cofactors they need. It is a solid, well-researched approach for anyone looking to support their hormonal health and overall mental focus.

Pros

  • Strong third-party quality reputation
  • Supports both metabolic and neurological health
  • Effective mineral chelate forms for better absorption
  • Clear, non-proprietary ingredient doses

Cons

  • Higher price per serving than simple minerals
  • Requires taking two capsules daily

Warnings

  • Iodine intake should be monitored with your healthcare provider
  • Avoid taking late at night if it affects your sleep

Nutrient quality

87 Highest impact

Utilization of L-selenomethionine and potassium iodide reflects a focus on bioavailable and stable mineral forms. Meaningful dosages of tyrosine and iodine support the primary objectives for metabolic and brain health.

Ingredient transparency

93 Highest impact

Labeling provides specific quantities for all active components, including mineral forms and botanical extracts. Full disclosure of standardized amounts where applicable aids in evaluating quality and potency.

Customer satisfaction

94 Highest impact

Exceptional average rating and a high volume of reviews indicate a very successful and reliable user experience. Consistent feedback regarding energy and metabolic support reinforces the formula's effectiveness.

Value for money

89 Highest impact

Price per serving is highly competitive, offering excellent value for a multi-ingredient metabolic blend. Quality ingredient forms and significant dosages justify the cost relative to similar products.

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Goals

Impact
Highest effect
A- Goal FitB+ Strength of SupportB+ CoverageA Formula Quality

L-Tyrosine and Ashwagandha are included to support the brain's response to acute stress and cognitive load. These ingredients may contribute to maintaining focus and mental clarity during demanding tasks.

A 500mg dose of tyrosine provides meaningful precursor support for neurotransmitter synthesis. The inclusion of selenium and iodine provides foundational support for metabolic pathways that influence brain energy.

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Ingredients

IngredientAmount per serving
Pantothenic Acid (Calcium Pantothenate)
100 mg
Iodine (Potassium Iodide)
100 mcg
Selenium (L-Selenomethionine)
50 mcg
Copper (Copper Gluconate)
0.5 mg
Manganese (Manganese Citrate)
0.5 mg
L-Tyrosine
500 mg
Ashwagandha extract
150 mg
Guggul extract
120 mg
Gluten Free Adults 18–50 Vegan Dairy Free Sugar Free Vegetarian
Report overview
Tyrosine · 500 mg OverallScore86
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD- Value
This thyroid health formula provides an effective dose of L-Tyrosine backed by strong third-party certifications. It is an excellent choice for a comprehensive metabolic approach, though it is more expensive per gram than pure amino acids.
A- Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyF Value
This thyroid support formula includes 100mg of Vitamin B5 to support healthy metabolism and adrenal function. It combines B5 with key minerals and adaptogens to provide focused support for systemic vitality.
Ashwagandha · 150 mg OverallScore60
F Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyA+ Value
This targeted thyroid supplement provides a maintenance dose of ashwagandha in a highly transparent formula. It offers great value for consumers looking to support general endocrine health affordably.
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