St. John's Wort 300 mg
by Nature's Way · capsule · 90 vegan capsules
- On the market (NIH)
- UPC 0 33674 63000 6
- DSLD label 333772
- Serving 1 capsule
- 90 servings
St. John's Wort 300 mg by Nature's Way lists 4 ingredients, 4 with an amount per serving of 1 capsule, such as 300 mg of St. John's wort flower, leaf, stem extract, 80 mg of rosemary and 40 mg of spirulina. Its current label entered the NIH Dietary Supplement Label Database on May 21, 2025.
What is in St. John's Wort 300 mg?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| St. John's Wort Flower, Leaf, Stem Extractas St. John's Wort Flower Extract, St. John's Wort Leaf Extract, St. John's Wort Stem Extract | 300 mg | 37% of 338 products listing St. John's wort give more (median 300 mg). Per day at the most servings: 900 mg. | |
| Dianthronesas Hypericin, Pseudohypericinstandardized to 0.15% dianthrones measured as hypericin and pseudo-hypericin | 0.45 mg | ||
| Rosemary | 80 mg | Higher than 60% of 332 products listing rosemary (median 50 mg). Per day at the most servings: 240 mg. | |
| Spirulina | 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 333772 (entered May 21, 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?
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?
The products whose ingredient lists overlap most with St. John's Wort 300 mg's, rare ingredients counting for more.
- St. John's Wort 150 mgPuritan's Pride 2 shared, 64% alike
- St. John's Wort 300 mgNature's Bounty 2 shared, 64% alike
- St. John's Wort StandardizedNature's Way · off the market 3 shared, 57% alike
- Balanced MoodNature's Way 3 shared, 57% alike
- Eaz StressHerb Stop 2 shared, 38% 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
- Recommendation: Adults take 1 capsule two to three times daily, preferably with food. Best results obtained with continuous use.
- Warnings
- Keep out of reach of children.
- Safety sealed with inner seal. Do not use if seal is broken or missing.
- Warning: Do not use if you are pregnant or nursing. St. John's Wort has the potential to interact with many prescription drugs, including oral contraceptives and antidepressants. If you are taking any medications or planning surgery, consult a healthcare professional before use.
- Avoid excessive exposure to UV radiation (e.g., sunlight or tanning) while using this product.
- Allergens and what it does not contain
- Gluten free. No wheat, corn, soy, dairy, gelatin, or artificial colors or flavors.
- Vegan Gelatin Free
- Non GMO Project Verified nongmoproject.org
- Storage
- Keep tightly closed. Store at room temperature. Avoid excessive heat and direct sunlight.
Source: label statements in DSLD label 333772.
What else is on the label?
Other ingredients: Hypromellose, Cellulose, Magnesium Stearate.
How many labels does St. John's Wort 300 mg have?
3 labels are on file under this name since August 23, 2021: other sizes, label designs and reformulations. The current one leads this page.
- Label 328066 Entered June 25, 2025 · off the market January 23, 2024 · 90 vegan capsules · UPC 0 33674 63000 6
- Label 333772 (current) Entered May 21, 2025 · on the market · 90 vegan capsules · UPC 0 33674 63000 6
- Label 251798 Entered August 23, 2021 · off the market December 20, 2024 · 90 vegan capsules · UPC 0 33674 63000 6
DSLD also links this label to: St. John's Wort Standardized (image difference, same product), St. John's Wort (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 Brands, LLC (manufacturer), Green Bay, WI. All Nature's Way products.