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St. John's Wort standardized extract

botanical

3
products
Updated April 2026

Dosage Range

300 mgavg 300 mg300 mg

St. John's Wort standardized extract is found in 4 supplement products from 4 brands. Dosages range from 300 to 300 mg, with an average of 300. The most common form is Capsule.

Top 5 Highest-Dosage St. John's Wort standardized extract Supplements

  1. St. John's Wort Extract 300 mg by Planetary Herbals300 mg
  2. St. John's Wort Extract by Swanson Superior Herbs300 mg
  3. St. John's Wort Gold 300 mg by Nutrigold300 mg

St. John's Wort Extract 300 mg by Planetary Herbals has the highest St. John's Wort standardized extract dosage at 300 mg. St. John's Wort Gold 300 mg by Nutrigold has the lowest at 300 mg.

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Frequently Asked Questions

How many products contain St. John's Wort standardized extract?

There are 4 supplement products containing St. John's Wort standardized extract from 4 brands in the NIH DSLD database.

What is the average St. John's Wort standardized extract dosage?

The average St. John's Wort standardized extract dosage across supplement products is 300 mg. Dosages range from 300 to 300 mg.

What is the most common form for St. John's Wort standardized extract supplements?

The most common product form for St. John's Wort standardized extract supplements is Capsule.

What brands make St. John's Wort standardized extract supplements?

There are 4 brands that make supplements containing St. John's Wort standardized extract in the NIH DSLD database.

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Quick Facts

Products
4
Brands
4
Avg Dose
300 mg
Common Form
Capsule
Category
botanical