St. John's Wort Extract 300 mg®
Botanicals with NutrientsBrand: Source Naturals
Functions
Net Contents
240 Tablet(s)
Serving Size
1 Tablet(s)
Servings Per Container
240
Supplement Form
Tablet or Pill
Bar Code (UPC/SKU)
0 21078 00899 6
Product Version
SN0899 REV F201 FG-105650
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
2 distinct active ingredients are disclosed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
1 ingredients report an established %DV per serving.
Label states: Vegetarian, Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Contains
- Milk
- Egg
- Wheat
- Soy
- Gluten
Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.
Supplement Facts
Serving Size: 1 Tablet(s) · 3 per day
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Calcium(Dibasic Calcium Phosphate) | 31 mg | 2% |
| St. John's Wort aerial parts extract | 300 mg | — |
| Hypericins | 0.9 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested Use: 1 tablet three times daily. For best results, use this product for at least 6 weeks.
Warnings & Precautions
Precautions re: Pregnant or Nursing or Prescription Medications
Warning: Do not use this product while taking any medication or if you have a medical condition, without the advice of your physician or pharmacist. St. John’s wort is known to interfere with many prescription and non-prescription drugs, including oral contraceptives, antibiotics, antidepressants, anticoagulants, antihistamines, immunosuppressants, corticosteroids, diabetes drugs, antiviral, antiseizure, anticancer and cardiovascular drugs.
Precautions re: All Other
It may also cause increased photosensitivity; limit exposure to UV radiation.
Precautions re: Pregnant or Nursing or Prescription Medications
If you are pregnant, may become pregnant, or breastfeeding, consult your healthcare professional before using this product.
Precautions re: All Other
Do not use if either tamper-evident seal is broken or missing.
Precautions re: Children
Keep out of the reach of children.
Formulation
Formula re: Contains
Standardized to 0.3% hypericins
Formulation re: Other
Supports a positive mental outlook
Formula re: Contains
Source Naturals St. John's Wort Extract is standardized to consistently supply 0.3% hypericins. A daily intake of St. John’s wort, standardized to 2.7 mg of hypericins, may support a positive outlook and mood. Benefits may be experienced within 4 to 6 weeks of initial use.
Formulation re: Other
Note: Natural plant variation may affect tablet color.
Formulation re: Vegetarian/Vegan
Suitable for Vegetarians.
Formulation re: Does NOT Contain
Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, preservatives, or artificial color, flavor or fragrance.
FDA Statements
FDA Statement of Identity
Dietary Supplement
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Other Label Statements
Brand IP Statement(s) re: (c), (TM), (SM)
Copyright SOURCE NATURALS, INC.
Manufacturer & Distributor
Distributor
Source Naturals, Inc.
P. O. Box 2118, Santa Cruz, CA, 95062
Market Reference
Source Naturals St John's Wort Extract
Herbs Direct4.4(12)$28.57Source Naturals St. John's Wort Extract 450
iHerb4.5(86)$23.46Nature's Bounty St. John's Wort 300 mg
Walmart4.6(194)$11.88Source Naturals St. John's Positive Thoughts Tablets
iHerb4.7(159)$9.22Source Naturals St. John's Positive Thoughts 90 Tablets
Nutrition Stop4.7(167)$24.49GNC Herbal Plus St. John's Wort Extract 300Mg
GNC4.4(36)$29.99Spring Valley St. John's Herbal Supplement Capsules
Walmart4.6(120)$11.82Swanson Vitamins St. John's Wort Extract
Swanson Health Products4.7(282)$10.61
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Research & Studies
Medical attributes of St. John's wort (Hypericum perforatum)
KM Klemow, E Bilbow, D Grasso, K Jones… - Oxidative Stress and …, 2004 - taylorfrancis.com
… -D) score of at least 20] in 11 academic medical centers in the United States. After a 1-week, … receive either St John’s wort extract (n=98; 900 mg/day for 4 weeks, increased to 1200 mg/…
2004234 citationsSt John's wort (Hypericum perforatum L.): a review of its chemistry, pharmacology and clinical properties
J Barnes, LA Anderson… - Journal of pharmacy and …, 2001 - Wiley Online Library
… St John’s wort extract (LI 160S) 600 mg, 300 mg, or placebo, on hormone concentrations in 12 healthy … I study involving 55 healthy volunteers who received St John’s wort 900 mg daily (…
20011,226 citationsEffects of St John's wort (Hypericum perforatum L.) extract on plasma androgen concentrations in healthy men and women: a pilot study
JL Donovan, CL DeVane, JG Lewis… - … Evaluation of Natural …, 2005 - Wiley Online Library
… source and employed the recommended dosage for depression of one tablet, which according to the label, contained 300 mg of SJW extract … All subjects were determined to be healthy …
200521 citationsRisk assessment of herbal preparations containing St John's wort
L De Wit, S Jeurissen, W Chen - 2021 - rivm.openrepository.com
… In the second part of the study, 13 healthy volunteers received 300 mg St John’s wort extract three times a day for 14 days, and blood and urine samples were collected at different time …
20217 citationsClinical relevance of St. John's wort drug interactions revisited
S Nicolussi, J Drewe, V Butterweck… - British journal of …, 2020 - Wiley Online Library
… The first clinically relevant reports of preparations of St. John's wort (SJW), a herbal medicine with anti-depressant effects, interacting with other drugs, altering their bioavailability and …
2020242 citationsHypericum perforatum (St John's wort) for attention-deficit/hyperactivity disorder in children and adolescents: a randomized controlled trial
W Weber, A Vander Stoep, RL McCarty, NS Weiss… - Jama, 2008 - jamanetwork.com
… the Bastyr Center for Natural Health and naturopathic physician … , the Bastyr Center for Natural Health newsletter, the Bastyr … information on the child's medical and family history; …
2008163 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-08-23. DSLD Label ID: 273009. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
Related Products

100% Daily Value Multi-Vitamin
Superior Source

100% Greens+Whey Chocolate
BioChem

100% Greens+Whey Chocolate
BioChem

100% Greens+Whey Vanilla
BioChem