botanical

St. John's Wort supplements

Half of the 338 St. John's wort supplements in the NIH label database that print an amount list 300 mg or less per serving; the middle half list 250 mg to 450 mg (DSLD version 9.4.0, January 2026). The 155 products whose only supplement ingredient is St. John's wort list a median of 450 mg.

How much St. John's wort do supplements contain?

The median product lists 300 mg per serving. One in ten lists 73.5 mg or less, one in ten 900 mg or more. The amount printed most often is 300 mg (108 products).

Which products list the most St. John's wort?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• St. John's WortAlvita1,330 mg
• Saint John's Wort Alcohol FreeHawaii Pharm1,156 mg
• Saint John's Wort Alcohol FreeHerbal Terra1,156 mg
• St. John's Wort 1100 mgNusaPure1,100 mg
• St. John's WortOregon's Wild Harvest1,050 mg
• St. John's Wort Young Flowering Tops Alcohol-FreeNature's Answer1,000 mg
• St. John's Wort 1,000 mg Organic AlcoholNature's Answer1,000 mg
• St. Johns Wort 1,000 mgNutricost1,000 mg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2012 list a median of 300 mg; those entered in 2025, 387.5 mg.

In which products and brands?

Brands listing it most: Nature's Way (12), Nature's Answer (10), TerraVita Premium Collection (8), Nature's Plus (6), Source Naturals (6), Vitanica (6), Douglas Laboratories (5), Solaray (5), Clarocet (4), HBC Protocols (4).

Every product listing St. John's wort

627 products, A to Z by name (page 11 of 13), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• St. John's Wort ConcentratedNature's Sunshine · off the market300 mg
• St. John's Wort Emotional Balance 750 mgPlanetary Herbalsin a blend
• St. John's Wort Extended ReleaseNaturesPlus Herbal Actives450 mg
• St. John's Wort ExtractTrader Joe's300 mg
• St. John's Wort ExtractSwanson Superior Herbs300 mg
• St. John's Wort Extract21st Century300 mg
• St. John's Wort ExtractBulkSupplements.com · off the market600 mg
• St. John's Wort ExtractOregon's Wild Harvest1,000 mg
• St. John's Wort Extract 300 mgGood 'N Natural · off the market300 mg
• St. John's Wort Extract 300 mgThe Vitamin Shoppe300 mg
• St. John's Wort Extract 300 mgGNC Herbal Plus300 mg
• St. John's Wort Extract 300 mgPlanetary Herbals300 mg
• St. John's Wort Extract 300 mgSource Naturals300 mg
• St. John's Wort Extract 300 mgLake Avenue Nutrition300 mg
• St. John's Wort Extract 600 mgBulkSupplements.com600 mg
• St. John's Wort Extract Alcohol-FreeNature's Answer1,000 mg
• St. John's Wort Extract Caps 300 mgLife Extension300 mg
• St. John's Wort Extract Extra StrengthEnzymatic Therapy · off the market450 mg
• St. John's Wort Extract Powder 600 mgBulkSupplements.com600 mg
• St. John's Wort Extract With HypericinNatural Factors · off the market300 mg
• St. John's Wort Extract With Hypericin 300 mgNatural Factors · off the market300 mg
• St. John's Wort Flower & Leaf 300 mgEclectic Institute300 mg
• St. John's Wort Flower Buds & TopsGaia Herbs · off the marketanother unit
• St. John's Wort Flower ExtractBluebonnet300 mg
• St. John's Wort Gold 300 mgNutriGold · off the market300 mg
• St. John's Wort Grain-Free AlcoholEclectic Institute · off the marketin a blend
• St. John's Wort HerbNature's Way · off the market700 mg
• St. John's Wort Herb 350 mgNature's Way · off the market700 mg
• St. John's Wort Herb 700 mgNature's Way700 mg
• St. John's Wort Herb ExtractSolgar475 mg
• St. John's Wort Liquid ExtractPlanetary Herbalsanother unit
• St. John's Wort Liquid Extract Alcohol & Sugar-FreeSwanson Premium Brand · off the market1,000 mg
• St. John's Wort Liquid Phyto-CapsGaia Herbs Professional Solutions · off the market1,350 mg
• St. John's Wort Max-VDouglas Laboratories400 mg
• St. John's Wort Mint FlavorTerraVitaanother unit
• St. John's Wort Plus 300 mg Standardized Extract with Ginseng & GinkgoMartin Avenue Pharmacy300 mg
• St. John's Wort PowderTerraVita Premium Collection1,000 mg
• St. John's Wort StandardizedNature's Way · off the market300 mg
• St. John's Wort Standardized ExtractSundown Naturals · off the market300 mg
• St. John's Wort Strawberry FlavorTerraVitaanother unit
• St. John's Wort Supreme 450 mgSupreme Nutrition Products900 mg
• St. John's Wort Time ReleaseNature's Sunshine · off the market460 mg
• St. John's Wort Vanilla FlavorTerraVitaanother unit
• St. John's Wort With B Vitamins And Folic AcidHBC Protocols300 mg
• St. John's Wort with Folate and B12Metagenics450 mg
• St. John's Wort Young Flowering TopsNature's Answer · off the market1,000 mg
• St. John's Wort Young Flowering Tops Alcohol-FreeNature's Answer1,000 mg
• St. John's Wort-IMTSP Standard Processin a blend
• St. Johns WortRed Moon Herbsin a blend
• St. Johns Wort 1,000 mgNutricost1,000 mg

Where next?

• Check an amount of St. John's wort
• Labels above the upper limit
• All ingredients