PlainVitamins

Thyroxolin

by NutraTech · capsule · 60 capsules

  • On the market (NIH)
  • UPC 6 43307 99056 0
  • DSLD label 287110
  • Serving 1 capsule; amounts per 2 capsules
  • 30 servings

Thyroxolin by NutraTech lists 13 ingredients, 13 with an amount per serving of 2 capsules, such as 100 mcg of vitamin B12, 150 mcg of iodine, 8 mg of zinc and 200 mcg of niacinamide. Its current label entered the NIH Dietary Supplement Label Database on June 22, 2023.

What is in Thyroxolin?

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).

Thyroxolin: Supplement Facts rows against the market (DSLD label 287110, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B12as Cyanocobalamin100 mcg1,667%Vitamin B12 in Thyroxolin against 14,425 products100 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg100 mcg

Higher than 61% of 14,425 products listing vitamin B12 (median 36 mcg). Per day at the most servings: 200 mcg.

Iodineas Kelp150 mcg100%Iodine in Thyroxolin against 6,382 products150 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg150 mcg

15% of 6,382 products listing iodine give more (median 150 mcg). Per day at the most servings: 300 mcg.

Zincas Zinc Oxide8 mg53%Zinc in Thyroxolin against 13,186 products8 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg8 mg

60% of 13,186 products listing zinc give more (median 11 mg). Per day at the most servings: 16 mg.

Niacinamide200 mcg286%

This amount is far outside what other labels list for niacin, or disagrees with the label's own %DV: possibly a unit or transcription slip in the database. Check the label image on DSLD.

Copperas Copper Oxide200 mcg10%Copper in Thyroxolin against 6,468 products0.2 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg0.2 mg

88% of 6,468 products listing copper give more (median 1 mg). Per day at the most servings: 0.4 mg.

Manganeseas Manganese Amino Acid Chelate2 mg100%Manganese in Thyroxolin against 7,016 products2 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg2 mg

38% of 7,016 products listing manganese give more (median 2 mg). Per day at the most servings: 4 mg.

Molybdenum Amino Acid Chelate50 mcg67%

The label names the compound (Molybdenum Amino Acid Chelate); its amount is likely the compound's weight, not the molybdenum it holds, so it is not placed among other products.

L-Tyrosine300 mgTyrosine in Thyroxolin against 1,680 products300 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.300 mg

59% of 1,680 products listing tyrosine give more (median 500 mg). Per day at the most servings: 600 mg.

Schizandra, Powder240 mgSchisandra in Thyroxolin against 460 products240 mg per serving; the middle half of products list 50 mg to 240 mg, the median 108.75 mg.240 mg

Higher than 71% of 460 products listing schisandra (median 108.75 mg). Per day at the most servings: 480 mg.

Ashwagandha, Powderas Ashwagandha, Powder, Ashwagandha, Powder200 mgAshwagandha in Thyroxolin against 1,646 products200 mg per serving; the middle half of products list 125 mg to 500 mg, the median 250 mg.200 mg

51% of 1,646 products listing ashwagandha give more (median 250 mg). Per day at the most servings: 400 mg.

Bladderwrack, Powder50 mgBladderwrack in Thyroxolin against 188 products50 mg per serving; the middle half of products list 50 mg to 500 mg, the median 77.5 mg.50 mg

55% of 188 products listing bladderwrack give more (median 77.5 mg). Per day at the most servings: 100 mg.

Cayenne Pepper, Powder30 mgCapsicum in Thyroxolin against 874 products30 mg per serving; the middle half of products list 25 mg to 100 mg, the median 44.5 mg.30 mg

57% of 874 products listing capsicum give more (median 44.5 mg). Per day at the most servings: 60 mg.

Kelp15 mgKelp in Thyroxolin against 333 products15 mg per serving; the middle half of products list 20 mg to 100 mg, the median 50 mg.15 mg

77% of 333 products listing kelp give more (median 50 mg). Per day at the most servings: 30 mg.

Source: NIH ODS Dietary Supplement Label Database, label 287110 (entered June 22, 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?

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:

  • 88% of the 6,468 products that print an amount of copper list more than its 0.2 mg of copper (median 1 mg).

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?

The products whose ingredient lists overlap most with Thyroxolin'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
Directions: As a dietary supplement, take one (1) capsule in the morning and one (1) capsule in the evening.
Warnings
Caution: Do not exceed recommended dose.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
Keep out of the reach of children.
Do not use if safety seal is damaged or missing.
Storage
Store in a cool dry place.

Source: label statements in DSLD label 287110.

What else is on the label?

Other ingredients: Gelatin, Cellulose, Magnesium Stearate, Silicon Dioxide.

How many labels does Thyroxolin have?

One label is on file, entered on June 22, 2023.

  1. Label 287110 (current) Entered June 22, 2023 · on the market · 60 capsules · UPC 6 43307 99056 0

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

Who makes it?

The label names Nutratech (distributor), Dallas, TX. All NutraTech products.

Where next?