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ThyroSense

Natural Factors WS WomenSense
4.8
★ ★ ★ ★ ★
(2666 ratings)
Tyrosine 500 mg
Vitamin B5 100 mg
Copper 0.5 mg
Ashwagandha 150 mg
Product Image
Score80
A transparent thyroid-focused blend with substantial tyrosine and useful selenium. The small supply and important thyroid and medication interactions are the main trade-offs.
How scoring works
Quantity:60 Capsule(s) • (30 servings)
Goals:
Brain Health

Score 80

A transparent thyroid-focused blend with substantial tyrosine and useful selenium. The small supply and important thyroid and medication interactions are the main trade-offs.
How scoring works

Also available as

1 option
120 servings Tyrosine 500 mg, Ashwagandha 150 mg +2 more • 120 Capsule(s) • 60 servings $18.87 ($0.31 per serving)
$10.47($0.34 per serving)
iHerb
$ 10.47
Vitacost
$ 11.53
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Analysis

A 500 mg L-tyrosine serving anchors the formula and may support neurotransmitter synthesis during acute stress. Iodine and selenomethionine also supply nutrients involved in normal thyroid hormone production and metabolism.

Ashwagandha and guggul provide complementary botanical components, but the label does not state their active-compound standardization. The combination is more directly designed around thyroid-related nutrition than comprehensive memory, attention, or cognitive support.

Two capsules make a serving, and this smaller bottle lasts 30 servings. Facility-level NSF GMP information in the supplied analysis supports manufacturing context without establishing that this particular product is independently certified.

Who is it for
  • Adults seeking a short trial of a thyroid-focused formula
  • People with clinician-reviewed iodine needs
  • Users interested in a tyrosine-led blend
Best for
  • Tyrosine supplementation
  • Iodine and selenium coverage
  • Trying the formula before buying a larger pack

Pros

  • Meaningful 500 mg L-tyrosine amount
  • Selenium is supplied as L-selenomethionine
  • No hidden proprietary blend
  • All active quantities are stated

Cons

  • Only 30 servings
  • Two capsules per serving
  • Botanical standardization is not shown
  • Does not cover broad cognitive pathways

Warnings

  • The iodine, ashwagandha, guggul, and tyrosine combination may alter thyroid activity and needs review with diagnosed thyroid disease
  • People taking levothyroxine or antithyroid medicines should not add this formula without treatment monitoring
  • L-tyrosine may interact with levodopa or monoamine oxidase inhibitors
  • Pregnancy warrants specific medical review because the formula contains ashwagandha and guggul

Nutrient quality

83 Highest impact

Several nutrients use well-regarded forms, and the tyrosine dose is substantial. Unstandardized ashwagandha and guggul extracts create some uncertainty about potency and consistency.

Ingredient transparency

81 Highest impact

Every listed active has a specific amount, and no proprietary blend conceals the formula. Missing extract standardization, daily-use directions, and inactive-ingredient details leave some label questions unresolved.

Customer satisfaction

73 High impact

The aggregate rating is excellent and supported by a very large number of reviews. No specific review comments were supplied, so recurring complaints and purpose-related experiences cannot be assessed.

Value for money

81 Highest impact

The shorter supply and clearly dosed core nutrients provide good practical value. Unstandardized botanicals slightly weaken the formula's value compared with more fully characterized alternatives.

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Goals

Brain Health
Brain Health
Impact
High effect
B+ Goal FitB Strength of SupportC+ CoverageB Formula Quality
Ashwagandha · 150 mg

ThyroSense aligns with Brain Health mainly through Tyrosine and Ashwagandha, while the supplied collection analyses average 69.0 and supplied customer feedback is 4.80 from 2,647 reviews.

Its strongest feature is form and disclosure quality, while coverage remains intentionally narrow; it appears better suited to a targeted role within a broader routine.

Study evidence
Ashwagandha Supportive 12 studies
Tyrosine Supportive 7 studies

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 Vegan Dairy Free Sugar Free Women 18–50 Vegetarian
Report overview
Tyrosine · 500 mg OverallScore86
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD- Value

ThyroSense 60 Capsules supplies 500 mg of clearly disclosed L-Tyrosine, earning preferred-form credit but a dosage score of 100. Customer feedback averages 4.80 across 2,647 reviews; people using thyroid medication or managing a thyroid condition should review the iodine, botanicals, and tyrosine combination with a clinician.

View ingredientView products
Vitamin B5 (Calcium Pantothenate) · 100 mg OverallScore72
A Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyF Value

The 60-capsule ThyroSense provides 100 mg of calcium pantothenate with a minimal excipient profile and 2,647 reviews averaging 4.80. Its form, purity, and disclosure are strong, but the $0.34 serving price normalizes to $1.70 per 500 mg of B5.

View ingredientView products
Copper (Copper Gluconate) · 0.5 mg OverallScore56
C- Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyB+ Value
Copper gluconate is a common organic salt with moderate expected absorption. The copper dose falls below the adult daily intake target, limiting its usefulness as a standalone source. No zinc is included, making this a neutral standalone copper contribution. The serving cost is favorable relative to the collection median. The broader botanical formula may still provide value beyond copper alone.
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Loading alternative details
88 Performance

Thyroid Support Complex

Pure Encapsulations
<p>Tyrosine, standardized ashwagandha, iodine, selenium, zinc, and named botanicals provide a more fully specified ingredient strategy. The substantial mineral and thyroid-active profile is better suited to a defined need than casual supplementation.</p>
90 Performance

Thyrocsin

Thorne
<p>High-quality vitamin and mineral forms plus meaningful iodine, selenium, and tyrosine make this a compact and coherent alternative. Ashwagandha is modest and unstandardized, while thyroid disease or thyroid-hormone use requires condition-specific guidance.</p>
92 Performance

Ortho Thyroid

Protocol For Life Balance
<p>Meaningful tyrosine, well-specified minerals, and standardized guggul and ashwagandha strengthen ingredient clarity. Iodine and thyroid-active botanicals can affect thyroid control, so users with thyroid conditions should seek individualized guidance.</p>
91 Budget

Thyroid Energy

NOW
<p>Meaningful tyrosine, well-specified minerals, and standardized guggul and ashwagandha create a coherent alternative at a lower serving cost. Iodine and thyroid-active botanicals may complicate thyroid disease or thyroid-hormone treatment.</p>
84 Budget

Essential Thyroid Nutrition

NutriCology
<p>Strong iodine, zinc, selenium, and vitamin B12 forms create a compact targeted formula, although it is not less costly than the original. Tyrosine and ashwagandha are modest, while iodine, ashwagandha, and forskolin warrant monitoring with thyroid treatment.</p>
87 Budget

ThyroSense

Natural Factors WS WomenSense
<p>The same tyrosine, iodine, selenium, ashwagandha, and guggul formula is offered at a slightly lower serving cost. It retains the original’s incomplete botanical standardization and the same need for caution with thyroid treatment.</p>
89 Value

Thyroid Energy

NOW
<p>Tyrosine and clearly specified minerals combine with standardized guggul and ashwagandha at a lower serving cost. The focused formula still calls for individualized guidance when thyroid conditions or medicines are involved.</p>
82 Value

Thyroid Health Formula

Natural Factors
<p>The near-identical tyrosine, mineral, ashwagandha, and guggul profile offers similar quality and serving economics. It does not resolve the original’s incomplete botanical standardization, so practical value is comparable rather than clearly improved.</p>
75 Value

Triple Action Thyroid

Life Extension
<p>Methylcobalamin, tyrosine, fermented ginseng, and branded ashwagandha broaden energy and stress support. Repeated iodine and ashwagandha entries reduce label certainty, and the higher serving cost limits the value advantage.</p>
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Acute and Repeated Ashwagandha Supplementation Improves Markers of Cognitive Function and Mood.
    Leonard M; Dickerson B; Estes L; Gonzalez DE; Jenkins V; Johnson S; Xing D; Yoo C; Ko J; Purpura M; Jäger R; Faries M; Kephart W; Sowinski R; Rasmussen CJ; Kreider RB · Nutrients · 2024
    Randomized trial59 participantsBrain Health forAshwagandha
  2. Effect of ashwagandha (Withania somnifera) extract with Sominone (Somin-On™) to improve memory in adults with mild cognitive impairment: A randomized, double-blind, placebo-controlled study.
    Rai HP; Mishra DN · Journal of psychopharmacology (Oxford, England) · 2025
    Randomized trial40 participantsBrain Health forAshwagandha
  3. Efficacy of Withania somnifera supplementation on adult's cognition and mood.
    Remenapp A; Coyle K; Orange T; Lynch T; Hooper D; Hooper S; Conway K; Hausenblas HA · Journal of Ayurveda and integrative medicine · 2022
    Randomized trial60 participantsBrain Health forAshwagandha
  4. A clinical assessment of the therapeutic effects of Ashwagandha root extract on cognitive performance, sleep, and fatigue in children aged 6-12 years.
    Saxena A; Lopresti A; Sharif M; Elon N; Suri R; Langade DK · Frontiers in nutrition · 2026
    Randomized trial85 participantsBrain Health forAshwagandha
  5. Efficacy and Safety of Ashwagandha Root Extract on Cognitive Functions in Healthy, Stressed Adults: A Randomized, Double-Blind, Placebo-Controlled Study.
    Gopukumar K; Thanawala S; Somepalli V; Rao TSS; Thamatam VB; Chauhan S · Evidence-based complementary and alternative medicine : eCAM · 2022
    Randomized trial130 participantsBrain Health forAshwagandha
  6. Combined L-carnosine and L-tyrosine supplementation as an ergogenic strategy for physical and cognitive performance under fatigue in professional football players.
    Bilgin S; Bozyılan E; Buzdağlı Y; Karaç Öcal Y; Gürkan O; Toktaş S; İnan H; Egil İ; Yarayan YE · Frontiers in nutrition · 2026
    Randomized trial24 participantsBrain Health forTyrosine
  7. Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands--A review.
    Jongkees BJ; Hommel B; Kühn S; Colzato LS · Journal of psychiatric research · 2016
    Narrative reviewBrain Health forTyrosine
  8. Influence of nutritional tyrosine on cognition and functional connectivity in healthy old humans.
    Hensel C; Becker M; Düzel S; Demuth I; Norman K; Steinhagen-Thiessen E; Gallinat J; Lindenberger U; Kühn S · NeuroImage · 2019
    Cross-sectional study286 participantsBrain Health forTyrosine
  9. Dietary Tyrosine Intake (FFQ) Is Associated with Locus Coeruleus, Attention and Grey Matter Maintenance: An MRI Structural Study on 398 Healthy Individuals of the Berlin Aging Study-II.
    Plini ERG; Melnychuk MC; Harkin A; Dahl MJ; McAuslan M; Kühn S; Boyle RT; Whelan R; Andrews R; Düzel S; Drewelies J; Wagner GG; Lindenberger U; Norman K; Robertson IH; Dockree PM · The journal of nutrition, health & aging · 2023
    Cross-sectional study398 participantsBrain Health forTyrosine
  10. Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating.
    Jongkees BJ · Cognitive, affective & behavioral neuroscience · 2021
    Randomized trial45 participantsBrain Health forTyrosine