PlainVitamins

Biotin 8000 mcg

by Thorne · capsule · 60 capsules

  • On the market (NIH)
  • UPC 6 93749 11802 2
  • DSLD label 336328
  • Serving 1 capsule
  • 60 servings

Biotin 8000 mcg by Thorne lists one ingredient: 8 mg of biotin per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on June 25, 2025.

What is in Biotin 8000 mcg?

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).

Biotin 8000 mcg: Supplement Facts rows against the market (DSLD label 336328, January 2026 release)
IngredientAmount% DVAmong products listing it
Biotin8 mg26,667%Biotin in Biotin 8000 mcg against 9,447 products8,000 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg8,000 mcg

Higher than 97% of 9,447 products listing biotin (median 200 mcg). Per day at the most servings: 16,000 mcg.

Source: NIH ODS Dietary Supplement Label Database, label 336328 (entered June 25, 2025), 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:

  • Its 8,000 mcg of biotin is higher than 97% of the 9,447 biotin products that print an amount; 265 list more.

The NIH database records 1 to 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?

6 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 one to two times daily or as recommended by your health-care practitioner.
Warnings
Tamper evident: Use only if bottle is sealed.
If pregnant, consult your health-care practitioner before using this product.
Warning: Biotin supplementation can interfere with certain lab tests. Consult your health-care practitioner prior to having your blood drawn.
Allergens and what it does not contain
Gluten free
Storage
Store tightly sealed in a cool, dry place.

Source: label statements in DSLD label 336328.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Hypromellose, Calcium Laurate, 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 NSF Contents Certified. Listed with: NSF certified (contents or GMP) (a seal is the label's claim; the certifier's own list confirms it).

How many labels does Biotin 8000 mcg have?

3 labels are on file under this name since February 21, 2023: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 336328 (current) Entered June 25, 2025 · on the market · 60 capsules · UPC 6 93749 11802 2
  2. Label 298060 Entered October 24, 2023 · off the market March 28, 2025 · 60 capsules · UPC 6 93749 11802 2
  3. Label 284196 Entered February 21, 2023 · off the market June 14, 2023 · 60 capsules · UPC 6 93749 11802 2

DSLD also links this label to: Biotin-8 (image difference, same product), Biotin-8 (image difference, same product), Biotin-8 (image difference, same product), Biotin-8 (image difference, same product), Biotin-8 (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 Thorne Research, Inc. (manufacturer). All Thorne products.

Where next?