PlainVitamins

Iodine & Tyrosine

by Thorne · capsule · 60 capsules

  • On the market (NIH)
  • UPC 6 93749 21902 6
  • DSLD label 298033
  • Serving 1 capsule
  • 60 servings

Iodine & Tyrosine by Thorne lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 225 mcg of iodine and 500 mg of L-tyrosine. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2023.

What is in Iodine & Tyrosine?

Each row as the label prints it, per serving of 1 capsule. 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).

Iodine & Tyrosine: Supplement Facts rows against the market (DSLD label 298033, January 2026 release)
IngredientAmount% DVAmong products listing it
Iodineas Potassium Iodide225 mcg150%Iodine in Iodine & Tyrosine against 6,382 products225 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg225 mcg

Higher than 90% of 6,382 products listing iodine (median 150 mcg). Per day at the most servings: 450 mcg.

L-Tyrosine500 mgTyrosine in Iodine & Tyrosine against 1,680 products500 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.500 mg

34% of 1,680 products listing tyrosine give more (median 500 mg). Per day at the most servings: 1,000 mg.

Source: NIH ODS Dietary Supplement Label Database, label 298033 (entered September 25, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 2 servings 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?

4 products list the very same ingredients; the nearest amounts come first.

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 1 capsule two times daily or as recommended by your health-care practitioner.
Warnings
Tamper evident: Use only if bottle is sealed.
Warning: If pregnant, do not use this product.
Allergens and what it does not contain
Gluten free
Storage
Store tightly sealed in a cool, dry place.

Source: label statements in DSLD label 298033.

What else is on the label?

Other ingredients: Hypromellose, Silicon Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Manufactured in the USA using US & Imported Ingredients.

How many labels does Iodine & Tyrosine have?

3 labels are on file under this name since October 25, 2018: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 298033 (current) Entered September 25, 2023 · on the market · 60 capsules · UPC 6 93749 21902 6
  2. Label 260453 Entered November 19, 2021 · on the market · 60 capsules · UPC 6 93749 21902 6
  3. Label 181824 Entered October 25, 2018 · off the market October 4, 2021 · 60 capsules · UPC 6 93749 21902 6

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

Who makes it?

The label names Thorne Research, Inc. (manufacturer). All Thorne products.

Where next?