PlainVitamins

Phytogen

by Thorne · capsule · 60 capsules

  • On the market (NIH)
  • UPC 6 93749 72403 2
  • DSLD label 298046
  • Serving 3 capsules
  • 20 servings

Phytogen by Thorne lists 4 ingredients, 4 with an amount per serving of 3 capsules, such as 450 mg of echinacea angustifolia, 225 mg of schisandra fruit extract, 110 mg of coptis rhizome extract and 30 mg of astragalus root extract. Its current label entered the NIH Dietary Supplement Label Database on October 24, 2023.

What is in Phytogen?

Each row as the label prints it, per serving of 3 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).

Phytogen: Supplement Facts rows against the market (DSLD label 298046, January 2026 release)
IngredientAmount% DVAmong products listing it
Echinacea angustifolia450 mgEchinacea angustifolia in Phytogen against 199 products450 mg per serving; the middle half of products list 50 mg to 245 mg, the median 100 mg.450 mg

Higher than 84% of 199 products listing echinacea angustifolia (median 100 mg). Per day at the most servings: 1,350 mg.

Schisandra Fruit Extractas Schisandra chinensis fruit extract225 mgSchisandra in Phytogen against 460 products225 mg per serving; the middle half of products list 50 mg to 240 mg, the median 108.75 mg.225 mg

Higher than 70% of 460 products listing schisandra (median 108.75 mg). Per day at the most servings: 675 mg.

Coptis Rhizome Extract110 mgChinese Goldthread in Phytogen against 51 products110 mg per serving; the middle half of products list 40 mg to 595 mg, the median 110 mg.110 mg

43% of 51 products listing chinese goldthread give more (median 110 mg). Per day at the most servings: 330 mg.

Astragalus Root Extractas Astragalus membranaceus Root Extract30 mgAstragalus in Phytogen against 604 products30 mg per serving; the middle half of products list 50 mg to 405 mg, the median 132.5 mg.30 mg

86% of 604 products listing astragalus give more (median 132.5 mg). Per day at the most servings: 90 mg.

Source: NIH ODS Dietary Supplement Label Database, label 298046 (entered October 24, 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 to 3 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?

1 product lists the very same ingredients; the nearest amounts come first.

  • PhytogenThorne Research · off the market same ingredients
  • Immune Factor ELongevity Medical Clinic 2 shared, 39% alike
  • Immune ActionNatures Plus · off the market 3 shared, 36% alike

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 3 capsules two to three times daily or as recommended by your health-care practitioner.
Warnings
Tamper Evident: Use only if bottle is sealed.
WARNING: If you are pregnant, nursing, or trying to conceive, do not use this product.
WARNING FOR CALIFORNIA RESIDENTS ONLY: Consuming this product can expose you to chemicals, including lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food. See also www.thorne.com/prop-65.
Allergens and what it does not contain
Gluten Free
Storage
Store tightly sealed in a cool, dry place.

Source: label statements in DSLD label 298046.

What else is on the label?

Other ingredients: Hypromellose, Microcrystalline Cellulose, 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 Phytogen have?

4 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 298046 (current) Entered October 24, 2023 · on the market · 60 capsules · UPC 6 93749 72403 2
  2. Label 267837 Entered June 16, 2022 · off the market June 21, 2022 · 60 capsules · UPC 6 93749 72403 2
  3. Label 260571 Entered October 22, 2021 · off the market June 14, 2023 · 60 capsules · UPC 6 93749 72403 2
  4. Label 182320 Entered October 25, 2018 · off the market October 4, 2021 · 60 capsules · UPC 6 93749 72403 2

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?