PlainVitamins

non-nutrient/non-botanical

Silymarin supplements

Half of the 208 silymarin supplements in the NIH label database that print an amount list 116 mg or less per serving; the middle half list 63.75 mg to 203 mg (DSLD version 9.4.0, January 2026).

Products listing it
228208 print an amount; 20 list it inside a blend without an amount
Median per serving
116 mgmiddle half 63.75 mg to 203 mg

How much silymarin do supplements contain?

The median product lists 116 mg per serving. One in ten lists 31.4 mg or less, one in ten 300 mg or more. The amount printed most often is 100 mg (29 products).

Products by amount of silymarin per serving

208 products, log scale; extreme 0.2% at each end left out of the drawing.

Silymarin: products by amount per serving10 mg30 mg100 mg300 mg
Silymarin: products by amount per serving10 mg30 mg100 mg300 mg
Silymarin: products by amount per serving10 mg30 mg100 mg300 mg
Silymarin: products by amount per serving10 mg30 mg100 mg300 mg
Silymarin: products by amount per serving10 mg30 mg100 mg300 mg
The amounts printed most often
Amount per servingProductsFor example
100 mg29 De-Tox Diet & Complexing Aid (Kirkman); Bio Span (Biotivia); Silymarin 100 mg (Life Extension)
200 mg17 Liva Guard Forte Softgels (Perque); Liva Guard Capsules (Perque); Pure Milk Thistle 4:1 Pure Extract Powder (Hard Rhino)
240 mg17 European Milk Thistle (Life Extension); Milk Thistle 300 mg Extract (FoodScience of Vermont); Healthy Liver (WholeHealth)
80 mg14 Milk Thistle 100 mg (Kirkman); Liver Detox (L.A. Naturals); DetoXichol (OTC Pharmaceutical Products)
50 mg12 Pycnogenol Complex (Source Naturals); Wellness Multiple (Source Naturals Wellness); Bioflavonoid Complex (Source Naturals)
60 mg11 WellBetX Glucose Balance Herbal Formula (Natural Factors); Liv-Gall Cleanse (Natural Factors HerbalFactors); Vegan True Vegan Force Multiple (Source Naturals)
140 mg10 Liver Support (AOR Advanced Orthomolecular Research Advanced); Milk Thistle Extract 175 mg (Puritan's Pride); Liver Aid + Milk Thistle (Liverite)
20 mg8 Oxygenics (Metagenics); Anti-Alcohol Antioxidants With HepatoProtection Complex (Life Extension); Anti-Alcohol With HepatoProtection Complex (Life Extension)
30 mg7 Advanced One Multiple (Source Naturals); Menopause Multiple (Source Naturals); Step 2 Detoxitech (Natural Factors)
160 mg7 Liver MD (MD Prescriptives); Liv-a-New (Puritan's Pride); Daily Gentle Cleanse (Irwin Naturals)

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

Which products list the most silymarin?

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).

Have the amounts changed over the years?

Products whose current label entered DSLD in 2017 list a median of 100 mg; those entered in 2025, 100 mg.

Median silymarin per serving by the year the label entered DSLD (years with 20+ products)
YearProductsMedian per serving
201720100 mg
202334140 mg
202428190 mg
202530100 mg

Source: DSLD label entry dates and amounts, current labels.

In which products and brands?

Products listing silymarin by DSLD product type

Silymarin by product typeOther Combinations135Botanical57Botanical with Nutrients10Non-Nutrient/Non-Botanical6
Silymarin by product typeOther Combinations135Botanical57Botanical with Nutrients10Non-Nutrient/Non-Botanical6
Silymarin by product typeOther Combinations135Botanical57Botanical with Nutrients10Non-Nutrient/Non-Botanical6
Silymarin by product typeOther Combinations135Botanical57Botanical with Nutrients10Non-Nutrient/Non-Botanical6
Silymarin by product typeOther Combinations135Botanical57Botanical with Nutrients10Non-Nutrient/Non-Botanical6

Brands listing it most: Source Naturals (23), Life Extension (21), NOW (11), Natural Factors (10), Metagenics (6), Metabolic Maintenance (5), Puritan's Pride (5), Rainbow Light (4), Protocol For Life Balance (4), MRM (3).

Every product listing silymarin

228 products, A to Z by name (page 2 of 5), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

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