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 9 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 WortIndiana Botanic Gardens300 mg
• St. John's WortEnzymatic Therapy · off the market450 mg
• St. John's WortHerbalist & Alchemistanother unit
• St. John's WortPure Encapsulations600 mg
• St. John's WortBotanic Choice70 mg
• St. John's WortChristopher's Original Formulasin a blend
• St. John's Wortplnt450 mg
• St. John's WortThymely Solutions450 mg
• St. John's WortNature's Way450 mg
• St. John's WortSonora Nutrition300 mg
• St. John's WortBIOVEA500 mg
• St. John's WortPurePremium Supplements500 mg
• St. John's WortHerbadiet300 mg
• St. John's WortAlvita1,330 mg
• St. John's WortNature's Sunshine460 mg
• St. John's WortSprouts Farmers Market500 mg
• St. John's WortTerraVitaanother unit
• St. John's WortPure Herbs1,925 mg as transcribed, likely a slip
• St. John's WortHerb Stop706 mg
• St. John's WortMRM Nutrition450 mg
• St. John's WortEveryday Health300 mg
• St. John's WortOregon's Wild Harvest1,050 mg
• St. John's WortDC300 mg
• St. John's WortMountain Meadow Herbsanother unit
• St. John's WortVillage Vitality450 mg
• St. John's WortWonder Laboratories300 mg
• St. John's WortHealths Harmony500 mg
• St. John's WortGaia Herbs333 mg
• St. John's WortVitanica400 mg
• St. John's WortEclectic Herbin a blend
• St. John's WortDr. Rico Perez450 mg
• St. John's WortCyto-Matrix450 mg
• St. John's WortHerb Pharm663 mg
• St. John's WortParadise300 mg
• St. John's Wort '300' Herb ExtractSolgar · off the market400 mg
• St. John's Wort (Alcohol Free)BIOVEA · off the market500 mg
• St. John's Wort / Ginkgo BilobaMaine Coast Herbals · off the market350 mg
• St. John's Wort 0.3% HypericinHerb Xtrain a blend
• St. John's Wort 0.3% Standardized ExtractVital Nutrients600 mg
• St. John's Wort 1,000 mgNature's Answer · off the market1,000 mg
• St. John's Wort 1,000 mg Alcohol-FreeNature's Answer · off the market1,000 mg
• St. John's Wort 1,000 mg Organic AlcoholNature's Answer1,000 mg
• St. John's Wort 1.8 gSP Standard Process MediHerb · off the market300 mg
• St. John's Wort 1100 mgNusaPure1,100 mg
• St. John's Wort 150 mgSpring Valley300 mg
• St. John's Wort 150 mgPuritan's Pride150 mg
• St. John's Wort 300MaritzMayer Laboratories · off the market300 mg
• St. John's Wort 300 mgVitaCeutical Labs300 mg
• St. John's Wort 300 mgVitabase300 mg
• St. John's Wort 300 mgWindmill Herbals300 mg

Where next?

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