Product Image

Thyrocsin

Thorne
4.8
★ ★ ★ ★ ★
(10606 ratings)
Iodine 225 mcg
Tyrosine 500 mg
Selenium 100 mcg
Ashwagandha 90 mg
Product Image
Score80
A well-formulated thyroid nutrient blend with iodine, tyrosine, selenium, methylcobalamin, and chelated zinc. The low ashwagandha amount and need for thyroid-medicine oversight are the main limitations.
How scoring works
Quantity:120 Capsule(s) • (60 servings)
Goals:
Metabolism Boost
General Health
Hair Health

Score 80

A well-formulated thyroid nutrient blend with iodine, tyrosine, selenium, methylcobalamin, and chelated zinc. The low ashwagandha amount and need for thyroid-medicine oversight are the main limitations.
How scoring works
$40.00($0.66 per serving)
Vitacost
$ 40.00
iHerb
$ 40.00
iHerb
$ 40.00
Walmart
$ 40.00
Amazon
$ 40.00
Pure Formulas
$ 40.00
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Analysis

Iodine, 500 mg tyrosine, selenium, zinc, copper, and methylcobalamin support normal thyroid hormone production and metabolism when nutrient intake is insufficient. Vitamin C and natural vitamin E add substantial antioxidant coverage.

Potassium iodide, selenomethionine, zinc bisglycinate, and methylcobalamin are well-chosen forms. Ashwagandha is present at only 90 mg without a stated withanolide amount, so it is a secondary rather than central feature.

Two capsules and clear active amounts make the formula easy to assess. It best fits monitored users seeking thyroid cofactors, not anyone treating unexplained fatigue or changing thyroid medicine on their own.

Who is it for
  • Adults whose thyroid nutrient needs are monitored
  • Users seeking iodine and tyrosine together
  • People who value well-chosen nutrient forms
Best for
  • Supporting normal thyroid hormone production
  • Metabolism-related nutrient support
  • Hair support when thyroid nutrient intake is inadequate

Pros

  • Provides 500 mg tyrosine
  • Uses potassium iodide and selenomethionine
  • Includes methylcobalamin and zinc bisglycinate
  • Clear two-capsule formula

Cons

  • Ashwagandha is lightly dosed
  • No withanolide standardization is stated
  • Copper amount is small
  • Not suitable for unsupervised thyroid treatment

Warnings

  • The 225 mcg iodine amount can worsen some thyroid conditions or conflict with thyroid-medicine dosing.
  • Tyrosine can interact with thyroid hormone, levodopa, and monoamine oxidase inhibitors.
  • Ashwagandha may alter thyroid hormone activity even at a modest amount.
  • Natural vitamin E may add to bleeding risk with anticoagulant or antiplatelet medicines.

Nutrient quality

82 Highest impact

Zinc bisglycinate, methylcobalamin, potassium iodide, L-selenomethionine, and copper citrate are strong forms. Iodine, selenium, vitamin C, and tyrosine are meaningful, while zinc and ashwagandha are modest.

.

Ingredient transparency

85 Highest impact

Every listed active has a specific amount. Serving count is available, but complete daily use directions are not supplied.

.

Customer satisfaction

75 High impact

The aggregate rating is strong and supported by very large rating volume. No specific feedback was supplied to judge repeated complaints or fit with the intended use.

.

Value for money

77 High impact

Strong forms and a coherent formula reasonably support the asking price. Each serving provides useful thyroid-focused actives at fair cost efficiency.

.
Report analysis

Goals

Metabolism Boost
Metabolism Boost
Impact
Highest effect
B Goal FitA- Strength of SupportB CoverageA- Formula Quality
Vitamin B12 · 100 mcgZinc · 5 mg

Thyrocsin has a direct metabolism fit through its disclosed thermogenic, thyroid, mitochondrial, or glycemic-support ingredients.

Dose quality and formula structure support a strong contribution, while evidence context and formula complexity remain the main constraints.

Study evidence
Iodine Mixed 17 studies
Selenium Mixed 28 studies
General Health
General Health
Impact
High effect
B- Goal FitB Strength of SupportB- CoverageB Formula Quality
Vitamin B12 · 100 mcgSelenium · 100 mcgAshwagandha · 90 mgZinc · 5 mgVitamin C · 200 mg

Thyrocsin appears reasonably aligned with general health through thyroid-oriented nutrients and adaptogens with some broader nutritional support.

The supplied customer feedback averages 4.77 from 10502 reviews, while the main limitation is its narrow thyroid emphasis.

Study evidence
Ashwagandha Supportive 31 studies
Selenium Supportive 70 studies
Zinc Supportive 60 studies
Hair Health
Hair Health
Impact
High effect
C+ Goal FitB Strength of SupportC+ CoverageB+ Formula Quality
Zinc · 5 mgVitamin C · 200 mg

Thyrocsin provides 225 mcg iodine, 100 mcg L-selenomethionine, 5 mg zinc bisglycinate, 100 mcg methylcobalamin, and 90 mg ashwagandha, with 10,502 supplied reviews averaging 4.77 stars.

Thorne operates an NSF-certified facility with extensive testing, but product-specific sport certification is not established and iodine plus ashwagandha warrants thyroid-medication review.

Study evidence
Ashwagandha Supportive 2 studies
Iodine No effect 1 study
Selenium Disputed 7 studies
Zinc Supportive 22 studies
Immunity
Immunity
Impact
Moderate effect
C- Goal FitC+ Strength of SupportC CoverageB- Formula Quality
Vitamin C · 200 mgZinc · 5 mgSelenium · 100 mcg

Vitamin C, natural-form vitamin E, L-selenomethionine, and zinc bisglycinate offer some immune support within a thyroid formula.

High-quality forms help, but low zinc and narrow immune pathway coverage limit the goal fit.

Study evidence
Selenium Mixed 37 studies
Vitamin C Supportive 53 studies
Vitamin E Supportive 21 studies
Zinc Supportive 73 studies
Brain Health
Brain Health
Impact
Moderate effect
C Goal FitB- Strength of SupportC- CoverageC Formula Quality
Vitamin B12 · 100 mcgAshwagandha · 90 mg

Thyrocsin may support mental resilience or cognition through its disclosed actives, with the strength of alignment depending on direct cognitive ingredients and form quality.

The dose and formula structure support a moderate contribution, while evidence quality and pathway coverage remain the main constraints.

Study evidence
Ashwagandha Supportive 12 studies
Energy
Energy
Impact
Moderate effect
D- Goal FitC Strength of SupportB- CoverageC Formula Quality
Iodine · 225 mcgVitamin B12 · 100 mcg

Thyrocsin from Thorne covers metabolic or mitochondrial support, alertness or focus support, stress-resilience support, producing weak goal alignment.

Collection-specific evidence indicates limited dose adequacy and good form or disclosure quality, with the main limitation being a sleep-oriented rather than daytime-energy design.

Study evidence
Ashwagandha Supportive 9 studies
Iodine Adverse 3 studies

Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
 200 mg
Vitamin E (D-Alpha-Tocopheryl)
 67 mg
Vitamin B12 (Methylcobalamin)
 100 mcg
Iodine (Potassium Iodide)
 225 mcg
Zinc (Albion Zinc Bisglycinate Chelate)
 5 mg
Selenium (L-Selenomethionine)
 100 mcg
Copper (Copper Citrate)
 500 mcg
L-Tyrosine
500 mg
Ashwagandha extract
90 mg
Gluten Free Adults 18–50 Women
Report overview
Iodine (Potassium Iodide) · 225 mcg OverallScore93
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyC+ Value

Thyrocsin provides 225 mcg of iodine as potassium iodide, with exact disclosure and a dose inside the preferred daily-maintenance range. At $0.66 per serving, iodine-specific value is moderate, while the presence of 100 mcg selenium and 500 mg L-tyrosine improves the higher-price value case. Customer feedback averages 4.77 across 10,502 reviews; the very large review base provides substantial customer validation for the established formula, and anyone using thyroid-related medication should review supplemental iodine with a healthcare professional.

View ingredientView products
Tyrosine · 500 mg OverallScore80
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value

Thyrocsin supplies 500 mg of clearly disclosed L-Tyrosine, earning preferred-form credit but a dosage score of 100. Customer feedback averages 4.77 across 10,502 reviews; people using thyroid medication or managing a thyroid condition should review the iodine, botanicals, and tyrosine combination with a clinician.

View ingredientView products
Selenium (L-Selenomethionine) · 100 mcg OverallScore77
A+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value

Thyrocsin supplies 100 mcg of selenium as L-selenomethionine. The dose maintains a strong safety margin, while chemical-form quality and the $1.32 standardized cost determine its collection fit.

View ingredientView products
Loading alternative details
68 Performance

Triple Action Thyroid

Life Extension
<p>Its label clearly provides 300mcg RAE of Vitamin A as Retinyl Palmitate, making it a more clearly defined iodine and ashwagandha and tyrosine option. Compared with the original, its ingredient and goal alignment is stronger, although it does not retain the original product’s selenium coverage.</p>
83 Performance

Alive! Men's 50+ Gummy Multivitmain

Nature's Way
<p>Its label clearly provides 500 mcg of Lycopene, making it a more clearly defined selenium and iodine option. Compared with the original, its ingredient and goal alignment is stronger, although it does not retain the original product’s ashwagandha and tyrosine coverage.</p>
72 Performance

Thyroid Support Complex

Pure Encapsulations
<p>Its label clearly provides 150 mg of Vitamin C as Ascorbic Acid, making it a more clearly defined selenium and iodine and ashwagandha and tyrosine option. Compared with the original, its ingredient and goal alignment is stronger, although the input does not provide independent testing or absorption evidence.</p>
77 Budget

Essential Thyroid Nutrition

NutriCology
<p>Its label clearly provides 150mcg RAE of Vitamin A as Retinyl Palmitate, preserving relevant iodine and ashwagandha and tyrosine coverage. Compared with the original, it lowers the serving cost, although it does not retain the original product’s selenium coverage.</p>
82 Budget

Alive! Men's Gummy Multivitamin

Nature's Way
<p>Its label clearly provides 900 mcg of Vitamin A as Retinyl Palmitate, preserving relevant selenium and iodine coverage. Compared with the original, it lowers the serving cost, although it does not retain the original product’s ashwagandha and tyrosine coverage.</p>
62 Budget

Thyroid Care

Terry Naturally
<p>Its label clearly provides 30000 mcg of Iodine, preserving relevant iodine and tyrosine coverage. Compared with the original, it lowers the serving cost, although it does not retain the original product’s selenium and ashwagandha coverage.</p>
65 Value

Thyroid Strength

MegaFood
<p>Its label clearly provides 125 mg of organic Kelp, keeping the formula relevant to selenium and ashwagandha and tyrosine. Compared with the original, the somewhat higher serving cost and ingredient detail create a useful quality-to-cost balance, although it does not retain the original product’s iodine coverage.</p>
82 Value

Alive! Men's Gummy Multivitamin Delicious Fruit Flavored

Nature's Way
<p>Its label clearly provides 900 mcg of Vitamin A as Retinyl Palmitate, keeping the formula relevant to selenium and iodine. Compared with the original, the lower serving cost and ingredient detail create a useful quality-to-cost balance, although it does not retain the original product’s ashwagandha and tyrosine coverage.</p>
74 Value

Thyroid Support Complex

Pure Encapsulations
<p>Its label clearly provides 750 mcg of Vitamin A as Vitamin A Acetate, keeping the formula relevant to ashwagandha and tyrosine. Compared with the original, the somewhat higher serving cost and ingredient detail create a useful quality-to-cost balance, although it does not retain the original product’s selenium and iodine coverage.</p>
Report alternatives

Sources

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

  1. Comparison of nutritional supplements in improving glycolipid metabolism and endocrine function in polycystic ovary syndrome: a systematic review and network meta-analysis.
    Hu X; Wang W; Su X; Peng H; Tan Z; Li Y; Huang Y · PeerJ · 2023
    Meta-analysis2,362 participants41 studies pooledMetabolism Boost forSelenium
  2. Serum selenium in relation to measures of glucose metabolism and incidence of Type 2 diabetes in an older Swedish population.
    Gao H; Hägg S; Sjögren P; Lambert PC; Ingelsson E; van Dam RM · Diabetic medicine : a journal of the British Diabetic Association · 2015
    Cohort study1,925 participantsMetabolism Boost forSelenium
  3. Dietary selenium intake and risk of hospitalization for type 2 diabetes in the Moli-sani study cohort.
    Vinceti M; Bonaccio M; Filippini T; Costanzo S; Wise LA; Di Castelnuovo A; Ruggiero E; Persichillo M; Cerletti C; Donati MB; de Gaetano G; Iacoviello L; Moli-sani Study Investigators · Nutrition, metabolism, and cardiovascular diseases : NMCD · 2021
    Cohort study21,335 participantsMetabolism Boost forSelenium
  4. The effects of selenium supplementation on cardiovascular risk factors in patients with metabolic diseases ‒ A systematic review and meta-analysis of randomized controlled trials.
    Qiu W; Huang N; Zhang K; Qiu H; Guo Z; Han F; Sun X; Hou N; Kan C · Nutricion hospitalaria · 2026
    Meta-analysis656 participants11 studies pooledMetabolism Boost forSelenium
  5. Iodine Supplementation Decreases Hypercholesterolemia in Iodine-Deficient, Overweight Women: A Randomized Controlled Trial.
    Herter-Aeberli I; Cherkaoui M; El Ansari N; Rohner R; Stinca S; Chabaa L; von Eckardstein A; Aboussad A; Zimmermann MB · The Journal of nutrition · 2015
    Randomized trial163 participantsMetabolism Boost forIodine
  6. Serum Manganese, Cobalt, Copper, Zinc, Selenium, and Iodine Levels, and the Incidence of Type 2 Diabetes: A Nested Case-control Study.
    Ito A; Yamamoto S; Iwai-Shimada M; Kobayashi Y; Isobe T; Iwai K; Nakayama SF; Konishi M; Watanabe Y; Yamamoto S; Nakagawa T; Yamazaki S; Mizoue T · Biological trace element research · 2026
    Case-control study936 participantsMetabolism Boost forIodine
  7. Urinary Iodine Concentration and Thyroid Hormone Metabolism in Pregnant Women and Neurodevelopment in Their Children: A Longitudinal Canadian Birth Cohort.
    Berghuis SA; Hall M; Krzeczkowski JE; Goodman CV; Chevrier J; Ayotte P; Lanphear B; Till C · Nutrients · 2025
    Cohort study1,501 participantsMetabolism Boost forIodine
  8. 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 Energy forAshwagandha
  9. 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
  10. 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
  11. 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
  12. 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
  13. Effects of multi-herb and ashwagandha root formulas on stress modulation: a randomized, double-blind, placebo-controlled clinical study.
    McKinney E; Stewart J; Kewalramani R; Singh S · Trials · 2026
    Randomized trial186 participantsEnergy forAshwagandha
  14. Efficacy and Safety of Low-Dose Ashwagandha Supplementation on Exercise Endurance: A Randomized, Placebo-Controlled, Double-Blind, Clinical Trial.
    Prajapati H; Satia M; Shah D; Basera I; Shah T · Phytotherapy research : PTR · 2026
    Randomized trialEnergy forAshwagandha
  15. Enhancing healthspan with Ashwagandha (Withania somnifera): a comprehensive review of its multifaceted geroprotective benefits.
    Vittal M; Vinciguerra M · Biogerontology · 2025
    Narrative reviewEnergy forAshwagandha
  16. Safety and Efficacy of Ashwagandha Root Extract on Cognition, Energy and Mood Problems in Adults: Prospective, Randomized, Placebo-Controlled Study.
    Kale S; Lopresti A; Suri R; Garg N; Langade D · Journal of psychoactive drugs · 2026
    Randomized trial120 participantsEnergy forAshwagandha
  17. Association of radioactive iodine treatment with survivorship symptoms and primary care utilisation in women of reproductive age with thyroid cancer: a retrospective cohort study.
    Devanarayan P; Hartman M; Partin M · Family medicine and community health · 2026
    Cohort study10,882 participantsEnergy forIodine
  18. Energy level and fatigue after surgery for thyroid cancer: A population-based study of patient-reported outcomes.
    Hughes DT; Reyes-Gastelum D; Kovatch KJ; Hamilton AS; Ward KC; Haymart MR · Surgery · 2020
    Cohort study2,584 participantsEnergy forIodine
  19. Health-Related Quality of Life in Differentiated Thyroid Cancer Survivors: A Cross-Sectional Study From Turkey.
    Gültekin A; Kahraman MY; Şengöz T; Şimşek FS · Head & neck · 2026
    Cross-sectional study202 participantsEnergy forIodine
  20. A randomized, double blind, placebo controlled study to evaluate the effects of ashwagandha (Withania somnifera) extract on sleep quality in healthy adults.
    Deshpande A; Irani N; Balkrishnan R; Benny IR · Sleep medicine · 2021
    Randomized trial150 participantsGeneral Health forAshwagandha
  21. Effects of Ashwagandha ( Withania somnifera) standardized root extract on physical endurance and VO 2max in healthy adults performing resistance training: An eight-week, prospective, randomized, double-blind, placebo-controlled study.
    Verma N; Gupta SK; Patil S; Tiwari S; Mishra AK · F1000Research · 2024
    Randomized trial80 participantsGeneral Health forAshwagandha
  22. Efficacy of Ashwagandha (Withania somnifera [L.] Dunal) in improving cardiorespiratory endurance in healthy athletic adults.
    Choudhary B; Shetty A; Langade DG · Ayu · 2016
    Randomized trial50 participantsGeneral Health forAshwagandha
  23. Withania somnifera (L.) Dunal as Add-On Therapy for COPD Patients: A Randomized, Placebo-Controlled, Double-Blind Study.
    Singh P; Salman KA; Shameem M; Warsi MS · Frontiers in pharmacology · 2022
    Randomized trial150 participantsGeneral Health forAshwagandha
  24. Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis.
    Cheah KL; Norhayati MN; Husniati Yaacob L; Abdul Rahman R · PloS one · 2021
    Meta-analysis400 participants5 studies pooledGeneral Health forAshwagandha
  25. Associations of selenium status with all-cause and cause-specific mortality: a systematic review and meta-analysis of cohort studies.
    Cui Z; Xie R; Lu X; Schomburg L; Brenner H; Schöttker B · Redox biology · 2025
    Meta-analysis95 participants20 studies pooledGeneral Health forSelenium
  26. Dietary Antioxidants, Circulating Antioxidant Concentrations, Total Antioxidant Capacity, and Risk of All-Cause Mortality: A Systematic Review and Dose-Response Meta-Analysis of Prospective Observational Studies.
    Jayedi A; Rashidy-Pour A; Parohan M; Zargar MS; Shab-Bidar S · Advances in nutrition (Bethesda, Md.) · 2019
    Meta-analysis507,251 participants41 studies pooledGeneral Health forSelenium
  27. The efficacy and safety of selenium supplementation versus placebo in the treatment of Graves' orbitopathy: A systematic review and meta-analysis of randomised controlled trials.
    Sharabati I; Qafesha RM; Hindawi MD; Amro S; Ayesh BM · Clinical endocrinology · 2024
    Meta-analysis4 studies pooledGeneral Health forSelenium
  28. Associations of plasma metal concentrations with the risks of all-cause and cardiovascular disease mortality in Chinese adults.
    Shi L; Yuan Y; Xiao Y; Long P; Li W; Yu Y; Liu Y; Liu K; Wang H; Zhou L; Yang H; Li X; He M; Wu T · Environment international · 2021
    Cohort study6,155 participantsGeneral Health forSelenium
  29. Updates on clinical studies of selenium supplementation in radiotherapy.
    Puspitasari IM; Abdulah R; Yamazaki C; Kameo S; Nakano T; Koyama H · Radiation oncology (London, England) · 2015
    Systematic review16 studies pooledGeneral Health forSelenium
  30. Effectiveness of sodium bicarbonate and zinc chloride mouthwashes in the treatment of oral mucositis and quality of life in patients with cancer under chemotherapy.
    Mohammadi F; Oshvandi K; Kamallan SR; Khazaei S; Ranjbar H; Ahmadi-Motamayel F; Gillespie M; Jenabi E; Vafaei SY · Nursing open · 2022
    Randomized trial144 participantsGeneral Health forZinc
  31. Zinc supplementation in young children with acute diarrhea in India.
    Sazawal S; Black RE; Bhan MK; Bhandari N; Sinha A; Jalla S · The New England journal of medicine · 1995
    Randomized trial937 participantsGeneral Health forZinc
  32. Associations of mortality with ocular disorders and an intervention of high-dose antioxidants and zinc in the Age-Related Eye Disease Study: AREDS Report No. 13.
    Clemons TE; Kurinij N; Sperduto RD; AREDS Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2004
    Randomized trial4,753 participantsGeneral Health forZinc
  33. Effects of zinc and probiotic co-supplementation on inflammation, gastrointestinal symptoms, quality of life, and mood in irritable bowel syndrome patients.
    Rezazadegan M; Soheilipour M; Amani R · Scientific reports · 2026
    Randomized trial84 participantsGeneral Health forZinc
  34. Effect of zinc sulfate supplementation on premenstrual syndrome and health-related quality of life: Clinical randomized controlled trial.
    Siahbazi S; Behboudi-Gandevani S; Moghaddam-Banaem L; Montazeri A · The journal of obstetrics and gynaecology research · 2018
    Randomized trial142 participantsGeneral Health forZinc
  35. Effects of Withania somnifera root extract serum application on hair health in healthy adults: A prospective, double-blind, randomized, parallel, placebo-controlled study.
    Yerram C; Jillella A; Reddy V · Journal of Ayurveda and integrative medicine · 2023
    Randomized trial61 participantsHair Health forAshwagandha
  36. A Prospective, Randomized, Double-Blind, Placebo-Controlled Clinical Study of Efficacy and Safety of Ashwagandha Root Extract Capsule on Skin and Hair Health in Healthy Adults.
    Jillella A; Keerthi N; Venkateswar Reddy J · Phytotherapy research : PTR · 2026
    Randomized trialHair Health forAshwagandha
  37. [Evaluation of the role of dietary intake in the occurrence of alopecia].
    El Fékih N; Kamoun H; Fazaa B; El Ati J; Zouari B; Kamoun MR; Gaigi S · Revue medicale de Liege · 2010
    Case-control study272 participantsHair Health forIodine
  38. Beyond Efficacy: 0.6% Selenium Disulfide Shampoo Matches 2% Ketoconazole for Seborrheic Dermatitis with Superior Cosmesis.
    Farris PK; Barbosa V; Houshman EB; Kovylkina N · Journal of drugs in dermatology : JDD · 2026
    Randomized trial87 participantsHair Health forSelenium
  39. Selenium Disulfide-based shampoo applied for 4 weeks significantly improves dandruff and seborrheic dermatitis.
    Turcu G; Artenie C; Nowicka D; Arenbergerová M; Lazaridou E; Khobzei K; Ataseven A; Part M; Leclerc-Mercier S · European journal of dermatology : EJD · 2023
    Observational study1,407 participantsHair Health forSelenium
  40. A Comparative Randomized Clinical Study Assessing the Efficacy of a 1% Selenium Disulfide-Based Shampoo versus 2% Ketoconazole Shampoo in Subjects with Moderate to Severe Scalp Seborrheic Dermatitis.
    Barbosa V; Melo DF; Vañó-Galván S; Lutchmanen-Kolanthan V; Sant'Anna B; Leclerc-Mercier S; Reygagne P · Skin appendage disorders · 2025
    Randomized trial64 participantsHair Health forSelenium
  41. Changes of serum trace elements level in patients with alopecia areata: A meta-analysis.
    Jin W; Zheng H; Shan B; Wu Y · The Journal of dermatology · 2018
    Meta-analysis764 participantsHair Health forSelenium
  42. Scientific opinion on the tolerable upper intake level for selenium.
    EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA); Turck D; Bohn T; Castenmiller J; de Henauw S; Hirsch-Ernst KI; Knutsen HK; Maciuk A; Mangelsdorf I; McArdle HJ; Peláez C; Pentieva K; Siani A; Thies F; Tsabouri S; Vinceti M; Aggett P; Crous Bou M; Cubadda F; Ciccolallo L; de Sesmaisons Lecarré A; Fabiani L; Titz A; Naska A · EFSA journal. European Food Safety Authority · 2023
    Systematic reviewHair Health forSelenium
  43. The effects of minoxidil, 1% pyrithione zinc and a combination of both on hair density: a randomized controlled trial.
    Berger RS; Fu JL; Smiles KA; Turner CB; Schnell BM; Werchowski KM; Lammers KM · The British journal of dermatology · 2003
    Randomized trial200 participantsHair Health forZinc
  44. Incubatory environment of the scalp impacts pre-emergent hair to affect post-emergent hair cuticle integrity.
    Schwartz JR; Henry JP; Kerr KM; Flagler MJ; Page SH; Redman-Furey N · Journal of cosmetic dermatology · 2018
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    Draelos ZD; Kenneally DC; Hodges LT; Billhimer W; Copas M; Margraf C · The journal of investigative dermatology. Symposium proceedings · 2006
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    Ozturk P; Kurutas E; Ataseven A; Dokur N; Gumusalan Y; Gorur A; Tamer L; Inaloz S · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2015
    Case-control study216 participantsHair Health forZinc
  47. Analysis of serum zinc and copper concentrations in hair loss.
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    Case-control study342 participantsHair Health forZinc
  48. Effects of selenium supplementation on selenoprotein gene expression and response to influenza vaccine challenge: a randomised controlled trial.
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    Randomized trial119 participantsImmunity forSelenium
  49. Effect of selenium on immune response against hepatitis B vaccine with accelerated method in insulin-dependent diabetes mellitus patients.
    Janbakhsh A; Mansouri F; Vaziri S; Sayad B; Afsharian M; Rahimi M; Shahebrahimi K; Salari F · Caspian journal of internal medicine · 2013
    Randomized trial62 participantsImmunity forSelenium
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    Yu SY; Li WG; Zhu YJ; Yu WP; Hou C · Biological trace element research · 1990
    Non-randomized trial20,847 participantsImmunity forSelenium
  51. Selenium nanoparticles as adjunctive therapy in sepsis: A pilot randomized clinical trial.
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    Randomized trial70 participantsImmunity forSelenium
  52. Selenium supplementation in patients with autoimmune thyroiditis decreases thyroid peroxidase antibodies concentrations.
    Gärtner R; Gasnier BC; Dietrich JW; Krebs B; Angstwurm MW · The Journal of clinical endocrinology and metabolism · 2002
    Randomized trial70 participantsImmunity forSelenium
  53. Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
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  54. Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
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    Meta-analysis2,334 participants14 studies pooledImmunity forVitamin C
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