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Best Milk thistle / silymarin products by transparent scoring (2026)
Single-ingredient products scored by public rules: dose fit, label transparency, data verification, company transparency, third-party testing. Not a measure of efficacy or safety. No paid placement.
Products ranked: 197 · Reference range: 75 – 14,500 mg (source) · Updated 2026-10-30
Dose fit 40 · Label transparency 20 · Data verification 15 · Company transparency 15 · Third-party test 10 — Methodology · Milk thistle / silymarin →
| Rank | Product | Per day | Score | Breakdown | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 tie |
European Milk Thistle Emerald Labs · US NIH DSLD |
200 mg | 90.0 | Breakdown
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| 1 tie |
Milk Thistle Combination Nature's Sunshine · US NIH DSLD |
700 mg | 90.0 | Breakdown
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| 1 tie |
Milk Thistle Extract 175 mg Solaray · US NIH DSLD |
350 mg | 90.0 | Breakdown
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| 1 tie |
Milk Thistle Phytosome Solaray · US NIH DSLD |
200 mg | 90.0 | Breakdown
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| 5 tie |
Milk Thistle Designs for Health · US NIH DSLD |
140 mg | 88.0 | Breakdown
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| 5 tie |
Silymarin Milk Thistle Nature's Bounty · US NIH DSLD |
500 mg | 88.0 | Breakdown
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| 5 tie |
Silymarin Milk-Thistle Vitamin World · US NIH DSLD |
500 mg | 88.0 | Breakdown
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| 8 tie |
Milk Thistle Douglas Laboratories · US NIH DSLD |
175 mg | 85.0 | Breakdown
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| 8 tie |
Milk Thistle Nature's Way · US NIH DSLD |
525 mg | 85.0 | Breakdown
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| 8 tie |
Milk Thistle Whole Foods Market · US NIH DSLD |
1,350 mg | 85.0 | Breakdown
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| 8 tie |
Milk Thistle 240 mg Sundown Naturals · US NIH DSLD |
720 mg | 85.0 | Breakdown
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| 8 tie |
Milk Thistle Extract 223 mg Country Life · US NIH DSLD |
446 mg | 85.0 | Breakdown
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| 8 tie |
Milk Thistle Plus Rainbow Light · US NIH DSLD |
1,000 mg | 85.0 | Breakdown
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| 8 tie |
Milk Thistle Plus Allergy Research Group · US NIH DSLD |
600 mg | 85.0 | Breakdown
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| 8 tie |
Milk Thistle Standardized Nature's Way · US NIH DSLD |
525 mg | 85.0 | Breakdown
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| 8 tie |
Milk Thistle X Nature's Way · US NIH DSLD |
900 mg | 85.0 | Breakdown
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| 8 tie |
Silymarin/Milk Thistle Capsules Douglas Laboratories · US NIH DSLD |
150 mg | 85.0 | Breakdown
|
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| 18 tie |
MapleLife¿ Milk Thistle Nutralab Canada Corp. · Health Canada LNHPD |
150 mg | 84.0 | Breakdown
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| 18 tie |
MediHerb Silymarin Integria Healthcare (Australia) Pty Ltd · Health Canada LNHPD |
210 mg | 84.0 | Breakdown
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| 18 tie |
Milk Thistle Gaia Herbs, Inc. · Health Canada LNHPD |
250 mg | 84.0 | Breakdown
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| 18 tie |
Milk Thistle GFR Pharma Ltd. · Health Canada LNHPD |
180 mg | 84.0 | Breakdown
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| 18 tie |
Milk Thistle NutraChamps Inc. · Health Canada LNHPD |
250 mg | 84.0 | Breakdown
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| 18 tie |
Milk Thistle 1000 mg Vita Health Products Inc. · Health Canada LNHPD |
250 mg | 84.0 | Breakdown
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| 18 tie |
Milk Thistle 200 mg Standardized Extract Softgels International Vitamin Corporation · Health Canada LNHPD |
200 mg | 84.0 | Breakdown
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| 18 tie |
Silymarin Metagenics Inc. · Health Canada LNHPD |
112 mg | 84.0 | Breakdown
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| 26 tie |
Milk Thistle Sundown Naturals · US NIH DSLD |
525 mg | 83.0 | Breakdown
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| 26 tie |
Super Milk Thistle Nature's Way · US NIH DSLD |
762 mg | 83.0 | Breakdown
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| 26 tie |
Thisilyn Milk Thistle Extract Nature's Way · US NIH DSLD |
525 mg | 83.0 | Breakdown
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| 29 | Milk Thistle Plus Genestra Brands · US NIH DSLD |
800 mg | 82.0 | Breakdown
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| 30 | Siliphos Thorne Research, Inc. · Health Canada LNHPD |
180 mg | 79.0 | Breakdown
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| 31 | SWISSE ULTIBOOST MILK THISTLE + GREEN TEA COMPLEX TABLET Swisse · Malaysia NPRA |
518 mg | 77.2 | Breakdown
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| 32 tie |
ExtractaCaps Milk Thistle Nature's Answer · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
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| 32 tie |
Liver Detox with Milk Thistle 80% Village Vitality · US NIH DSLD |
240 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle LiveLong · US NIH DSLD |
900 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Fresh Nutrition · US NIH DSLD |
95 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle PureCo · US NIH DSLD |
600 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Paradise · US NIH DSLD |
500 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Best Naturals · US NIH DSLD |
250 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Nutricost · US NIH DSLD |
250 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Nutracraft · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Divine Bounty · US NIH DSLD |
300 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Teraputics Pure Life · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle NusaPure · US NIH DSLD |
250 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Mental Refreshment · US NIH DSLD |
250 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle SuperiorLabs · US NIH DSLD |
750 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Alvita · US NIH DSLD |
12,000 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle DaVinci Laboratories Of Vermont · US NIH DSLD |
300 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle BioMed Balance · US NIH DSLD |
475 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Wonder Laboratories · US NIH DSLD |
525 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle & Cranberry Mason Natural · US NIH DSLD |
150 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle (Silymarin) Mason Natural · US NIH DSLD |
600 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle 1000 mg Bronson · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle 175 mg VSN Vital Strength Nutrition · US NIH DSLD |
1,050 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle 175 mg Anabolic Laboratories · US NIH DSLD |
1,050 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle 175 mg Vitamer Laboratories · US NIH DSLD |
1,050 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle 350 mg Vitamer Laboratories · US NIH DSLD |
350 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle 500 mg Good State · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle 525 mg Finest Nutrition · US NIH DSLD |
525 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle 600 mg Eclectic Herb · US NIH DSLD |
7,200 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Comlex Indiana Botanic Gardens · US NIH DSLD |
420 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Complex Sundown Naturalist · US NIH DSLD |
720 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Extract California Natural · US NIH DSLD |
525 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Extract 150 mg Vitacost · US NIH DSLD |
150 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Extract 300 mg Meijer · US NIH DSLD |
300 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Liquid Drops BareOrganics · US NIH DSLD |
999 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Seed Extract 1,000 mg Nature's Truth · US NIH DSLD |
1,000 mg | 75.0 | Breakdown
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| 32 tie |
Milk Thistle Seed Powder BareOrganics · US NIH DSLD |
3,000 mg | 75.0 | Breakdown
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| 32 tie |
Organic Milk Thistle LEAN Nutraceuticals · US NIH DSLD |
400 mg | 75.0 | Breakdown
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| 32 tie |
Standardized Milk Thistle 140 mg Basic Vitamins · US NIH DSLD |
140 mg | 75.0 | Breakdown
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| 70 tie |
Herb 360 Milk Thistle GNC Earth Genius · US NIH DSLD |
500 mg | 73.0 | Breakdown
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| 70 tie |
Liv-A-New With Milk Thistle Good 'N Natural · US NIH DSLD |
300 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle Doctor's A-Z · US NIH DSLD |
750 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle GNC Ultra Mega Green · US NIH DSLD |
200 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle Herb Pharm · US NIH DSLD |
840 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle IVL Institute For Vibrant Living · US NIH DSLD |
300 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle Bronson Laboratories · US NIH DSLD |
250 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle 175 mg Thompson · US NIH DSLD |
525 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle 200 mg Highland Laboratories · US NIH DSLD |
400 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle 200 mg Exchange Select · US NIH DSLD |
200 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle 250 mg Natures Plus Herbal Actives · US NIH DSLD |
250 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle 500 Priority One Nutritional Supplements · US NIH DSLD |
1,500 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle 500 mg Extended Release Natures Plus Herbal Actives · US NIH DSLD |
500 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle Extra Strength Yerba Prima · US NIH DSLD |
80 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle Extract Nature's Origin · US NIH DSLD |
500 mg | 73.0 | Breakdown
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| 70 tie |
Milk Thistle Extract 80% Silymarin Natural Factors · US NIH DSLD |
1,500 mg | 73.0 | Breakdown
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| 70 tie |
Silymarin Milk Thistle Wonder Laboratories · US NIH DSLD |
500 mg | 73.0 | Breakdown
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| 70 tie |
Super Milk Thistle X Integrative Therapeutics · US NIH DSLD |
200 mg | 73.0 | Breakdown
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| 88 tie |
Complete Milk Thistle WholeHealth · US NIH DSLD |
700 mg | 72.0 | Breakdown
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| 88 tie |
European Milk Thistle Life Extension · US NIH DSLD |
3,256 mg | 72.0 | Breakdown
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| 88 tie |
Full Spectrum Milk Thistle Seed Extract Planetary Herbals · US NIH DSLD |
1,040 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle Oregon's Wild Harvest · US NIH DSLD |
4,500 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle L.A. Naturals · US NIH DSLD |
1,350 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle Kroeger Herb Products Co. · US NIH DSLD |
1,425 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle PurePremium Supplements · US NIH DSLD |
1,350 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle Advanced Nutrition by Zahler · US NIH DSLD |
450 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle Village Vitality · US NIH DSLD |
1,350 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle 450 mg ZHOU · US NIH DSLD |
1,350 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle Complex Sunergetic · US NIH DSLD |
1,350 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle Seed Gaia Herbs Single Herbs · US NIH DSLD |
810 mg | 72.0 | Breakdown
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| 88 tie |
Milk Thistle Supreme PureFormulas · US NIH DSLD |
700 mg | 72.0 | Breakdown
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For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.