Thyro-T

by LifeSeasons · capsule · 60 capsules

  • Off the market since March 2023 (NIH)
  • UPC 8 53760 00221 6
  • DSLD label 249642
  • Serving 2 capsules
  • 30 servings

Thyro-T by LifeSeasons lists 10 ingredients, 10 with an amount per serving of 2 capsules, such as 50 mcg of selenium, 5 mg of zinc, 300 mg of ashwagandha and 200 mg of L-tyrosine. Its current label entered the NIH Dietary Supplement Label Database on June 23, 2021.

What is in Thyro-T?

Each row as the label prints it, per serving of 2 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Thyro-T: Supplement Facts rows against the market (DSLD label 249642, January 2026 release)
IngredientAmount% DVAmong products listing it
Seleniumas SelenomethionineSelenium (Form: as Selenomethionine)50 mcg72%Selenium in Thyro-T against 7,658 products50 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg50 mcg

56% of 7,658 products listing selenium give more (median 55 mcg).

Zincas Zinc GluconateZinc (Form: as Zinc Gluconate)5 mg33%Zinc in Thyro-T against 13,186 products5 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg5 mg

72% of 13,186 products listing zinc give more (median 11 mg).

Ashwagandhaas WithanolidesAshwagandha (Form: 10% Withanolides Note: 30 mg) (Alt. Name: Sensoril) Genus: Withania Species: somnifera300 mgAshwagandha in Thyro-T against 1,646 products300 mg per serving; the middle half of products list 125 mg to 500 mg, the median 250 mg.300 mg

Higher than 59% of 1,646 products listing ashwagandha (median 250 mg).

L-Tyrosine200 mgTyrosine in Thyro-T against 1,680 products200 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.200 mg

69% of 1,680 products listing tyrosine give more (median 500 mg).

Coleus forskohliias ForskolinColeus forskohlii (Form: [10 mg] 10% Forskolin) (Alt. Name: ForsLean) Genus: Coleus Species: forskohlii100 mgColeus in Thyro-T against 303 products100 mg per serving; the middle half of products list 73.5 mg to 250 mg, the median 125 mg.100 mg

51% of 303 products listing coleus give more (median 125 mg).

Guggul resin extractas GuggulsteronesGuggul resin extract (Form: 2.5% Guggulsterones Note: 2.5 mg) PlantPart: resin Genus: Commiphora Species: mukul100 mgGuggul in Thyro-T against 279 products100 mg per serving; the middle half of products list 50 mg to 350 mg, the median 100 mg.100 mg

47% of 279 products listing guggul give more (median 100 mg).

Thyroidas BovineThyroid (Form: Bovine) Note: hormone-free50 mgThyroid in Thyro-T against 60 products50 mg per serving; the middle half of products list 31.88 mg to 142.5 mg, the median 100 mg.50 mg

62% of 60 products listing thyroid give more (median 100 mg).

Mullein50 mgMullein in Thyro-T against 97 products50 mg per serving; the middle half of products list 50 mg to 580 mg, the median 100 mg.50 mg

65% of 97 products listing mullein give more (median 100 mg).

Burdock25 mgBurdock in Thyro-T against 302 products25 mg per serving; the middle half of products list 76 mg to 400 mg, the median 145 mg.25 mg

89% of 302 products listing burdock give more (median 145 mg).

Atlantic Kelp extractas IodineAtlantic Kelp extract (Form: 0.4% Iodine Note: 0.07 mcg) Genus: Laminaria Species: digitata175 mcgKelp in Thyro-T against 333 products0.175 mg per serving; the middle half of products list 20 mg to 100 mg, the median 50 mg.0.175 mg

97% of 333 products listing kelp give more (median 50 mg).

Source: NIH ODS Dietary Supplement Label Database, label 249642 (entered June 23, 2021), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 89% of the 302 products that print an amount of burdock list more than its 25 mg of burdock (median 145 mg).
  • 97% of the 333 products that print an amount of kelp list more than its 0.175 mg of atlantic kelp extract (filed by NIH under kelp) (median 50 mg).

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Thyro-T's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Use: Take 2 capsules daily, with or without food.
Warnings
Caution: As with any dietary supplement, do not take without first consulting your healthcare practitioner, especially if you are pregnant, nursing, or are under medical supervision for any reason.
Keep out of reach of children.
Allergens and what it does not contain
Made without artificial colors, preservatives, yeast, eggs, fish, shellfish, peanuts, tree nuts, wheat, soy, milk, gluten, and magnesium stearate.

Source: label statements in DSLD label 249642.

What else is on the label?

Other ingredients: Hypromellose, Microcrystalline Cellulose, Rice Bran.

How many labels does Thyro-T have?

2 labels are on file under this name since April 23, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 249642 (current) Entered June 23, 2021 · off the market March 13, 2023 · 60 capsules · UPC 8 53760 00221 6
  2. Label 217391 Entered April 23, 2020 · off the market March 19, 2021 · 60 vegetarian capsules · UPC 8 53760 00221 6

DSLD also links this label to: Prosperi-T Thyroid Support (image difference, same product), Thyro-T (image difference, same product).

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names LifeSeasons (manufacturer), Springville, UT. All LifeSeasons products.

Where next?