High-Dose St. John's Wort standardized extract Supplements
3 products above 300 mg
3 supplements contain high-dose St. John's Wort standardized extract (above 300 mg). The highest dosage product is St. John's Wort Extract 300 mg at 300 mg.
Low Dose (3)High Dose (3)
High-Dose Products (sorted by dosage)
| Product | Brand | Dosage | % DV |
|---|---|---|---|
| St. John's Wort Extract 300 mg | Planetary Herbals | 300 mg | — |
| St. John's Wort Gold 300 mgdiscontinued | Nutrigold | 300 mg | — |
| St. John's Wort Extract | Swanson Superior Herbs | 300 mg | — |
Frequently Asked Questions
What is considered high-dose St. John's Wort standardized extract?
Based on 4 products in the NIH DSLD database, high-dose St. John's Wort standardized extract supplements contain 300+ mg.
Is high-dose St. John's Wort standardized extract safe?
This site presents supplement label data only. Consult a healthcare professional before taking high doses of any supplement, including St. John's Wort standardized extract.