PlainVitamins

St. John's Wort Standardized

by Nature's Way · capsule · 90 capsules

  • Off the market since February 2016 (NIH)
  • UPC 0 33674 63000 6
  • DSLD label 26400
  • Serving 1 capsule
  • 90 servings

St. John's Wort Standardized by Nature's Way lists 3 ingredients, 3 with an amount per serving of 1 capsule, such as 300 mg of St. John's wort extract, 80 mg of rosemary and 40 mg of spirulina. Its current label entered the NIH Dietary Supplement Label Database on November 25, 2013.

What is in St. John's Wort Standardized?

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).

St. John's Wort Standardized: Supplement Facts rows against the market (DSLD label 26400, January 2026 release)
IngredientAmount% DVAmong products listing it
St. John's Wort extractas DianthronesSt. John's Wort extract (Form: 0.3% dianthrones (Form: measured as hypericin)) PlantPart: stem, leaf, flower300 mgSt. John's Wort in St. John's Wort Standardized against 338 products300 mg per serving; the middle half of products list 250 mg to 450 mg, the median 300 mg.300 mg

37% of 338 products listing St. John's wort give more (median 300 mg). Per day at the most servings: 900 mg.

Rosemary80 mgRosemary in St. John's Wort Standardized against 332 products80 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.80 mg

Higher than 60% of 332 products listing rosemary (median 50 mg). Per day at the most servings: 240 mg.

SpirulinaSpirulina Note: algae40 mgBlue-Green Algae in St. John's Wort Standardized against 709 products40 mg per serving; the middle half of products list 100 mg to 1,000 mg, the median 500 mg.40 mg

86% of 709 products listing blue-green algae give more (median 500 mg). Per day at the most servings: 120 mg.

Source: NIH ODS Dietary Supplement Label Database, label 26400 (entered November 25, 2013), 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?

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.

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
Recommendation: Take 1 capsule two to three times daily, preferably with food. Best results obtained with continuous use.
Warnings
Keep out of reach of children.
Do not use if either seal is broken or missing.
Caution: Do not use this product while taking any prescription drug without the advice of your prescribing physician.
Avoid excessive exposure to UV radiation (e.g. sunlight, tanning) when using this product.
Not recommended for use by pregnant or lactating women.

Source: label statements in DSLD label 26400.

What else is on the label?

Other ingredients: Gelatin, Cellulose, Magnesium Stearate.

How many labels does St. John's Wort Standardized have?

One label is on file, entered on November 25, 2013.

  1. Label 26400 (current) Entered November 25, 2013 · off the market February 25, 2016 · 90 capsules · UPC 0 33674 63000 6

DSLD also links this label to: St. John's Wort (image difference, same product), St. John's Wort 300 mg (image difference, same product), St. John's Wort 300 mg (image difference, same product), St. John's Wort 300 mg (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 Nature's Way Products, Inc. (manufacturer), Green Bay, WI. All Nature's Way products.

Where next?