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: 163 · Reference range: 75 – 14,500 mg (source) · Updated 2026-11-01
Reference range: derived from the cited reference values; see the methodology.
Single-ingredient products only.
Left out of this list: combination products (a single-ingredient list exists) (34)
Dose fit 40 · Label transparency 20 · Data verification 15 · Company transparency 15 · Third-party test 10 (No data (not scored); the other four parts are rescaled from 90 to 100) — Methodology · Milk thistle / silymarin →
| Rank | Product | Per day | Score | Breakdown | ||||||||||||||||
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| 1 | Milk Thistle Extract 175 mg Solaray · US NIH DSLD |
350 mg | 100.0 | Breakdown
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| 2 tie |
Silymarin Milk Thistle Nature's Bounty · US NIH DSLD |
500 mg | 97.8 | Breakdown
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| 2 tie |
Silymarin Milk-Thistle Vitamin World · US NIH DSLD |
500 mg | 97.8 | Breakdown
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| 4 tie |
Milk Thistle Douglas Laboratories · US NIH DSLD |
175 mg | 94.4 | Breakdown
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| 4 tie |
Milk Thistle Nature's Way · US NIH DSLD |
525 mg | 94.4 | Breakdown
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| 4 tie |
Milk Thistle Whole Foods Market · US NIH DSLD |
1,350 mg | 94.4 | Breakdown
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| 4 tie |
Milk Thistle 240 mg Sundown Naturals · US NIH DSLD |
720 mg | 94.4 | Breakdown
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| 4 tie |
Milk Thistle Standardized Nature's Way · US NIH DSLD |
525 mg | 94.4 | Breakdown
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| 4 tie |
Silymarin/Milk Thistle Capsules Douglas Laboratories · US NIH DSLD |
150 mg | 94.4 | Breakdown
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| 10 tie |
MapleLife¿ Milk Thistle Nutralab Canada Corp. · Health Canada LNHPD |
150 mg | 93.3 | Breakdown
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| 10 tie |
MediHerb Silymarin Integria Healthcare (Australia) Pty Ltd · Health Canada LNHPD |
210 mg | 93.3 | Breakdown
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| 10 tie |
Milk Thistle Gaia Herbs, Inc. · Health Canada LNHPD |
250 mg | 93.3 | Breakdown
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| 10 tie |
Milk Thistle GFR Pharma Ltd. · Health Canada LNHPD |
180 mg | 93.3 | Breakdown
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| 10 tie |
Milk Thistle NutraChamps Inc. · Health Canada LNHPD |
250 mg | 93.3 | Breakdown
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| 10 tie |
Milk Thistle 1000 mg Vita Health Products Inc. · Health Canada LNHPD |
250 mg | 93.3 | Breakdown
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| 10 tie |
Milk Thistle 200 mg Standardized Extract Softgels International Vitamin Corporation · Health Canada LNHPD |
200 mg | 93.3 | Breakdown
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| 10 tie |
Silymarin Metagenics Inc. · Health Canada LNHPD |
112 mg | 93.3 | Breakdown
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| 18 tie |
Milk Thistle Sundown Naturals · US NIH DSLD |
525 mg | 92.2 | Breakdown
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| 18 tie |
Thisilyn Milk Thistle Extract Nature's Way · US NIH DSLD |
525 mg | 92.2 | Breakdown
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| 20 | Milk Thistle Plus Genestra Brands · US NIH DSLD |
800 mg | 91.1 | Breakdown
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| 21 | Siliphos Thorne Research, Inc. · Health Canada LNHPD |
180 mg | 87.8 | Breakdown
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| 22 tie |
ExtractaCaps Milk Thistle Nature's Answer · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 22 tie |
Liver Detox with Milk Thistle 80% Village Vitality · US NIH DSLD |
240 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle LiveLong · US NIH DSLD |
900 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle PureCo · US NIH DSLD |
600 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Paradise · US NIH DSLD |
500 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Best Naturals · US NIH DSLD |
250 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Nutricost · US NIH DSLD |
250 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Nutracraft · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Divine Bounty · US NIH DSLD |
300 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Teraputics Pure Life · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle NusaPure · US NIH DSLD |
250 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Mental Refreshment · US NIH DSLD |
250 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle SuperiorLabs · US NIH DSLD |
750 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Alvita · US NIH DSLD |
12,000 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle DaVinci Laboratories Of Vermont · US NIH DSLD |
300 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle BioMed Balance · US NIH DSLD |
475 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle 175 mg VSN Vital Strength Nutrition · US NIH DSLD |
1,050 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle 175 mg Anabolic Laboratories · US NIH DSLD |
1,050 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle 175 mg Vitamer Laboratories · US NIH DSLD |
1,050 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle 350 mg Vitamer Laboratories · US NIH DSLD |
350 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle 500 mg Good State · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle 525 mg Finest Nutrition · US NIH DSLD |
525 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle 600 mg Eclectic Herb · US NIH DSLD |
7,200 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Complex Sundown Naturalist · US NIH DSLD |
720 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Extract California Natural · US NIH DSLD |
525 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Extract 150 mg Vitacost · US NIH DSLD |
150 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Liquid Drops BareOrganics · US NIH DSLD |
999 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Seed Extract 1,000 mg Nature's Truth · US NIH DSLD |
1,000 mg | 83.3 | Breakdown
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| 22 tie |
Milk Thistle Seed Powder BareOrganics · US NIH DSLD |
3,000 mg | 83.3 | Breakdown
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100 products were scored; the top 50 are listed here. See the rest in the product list.
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.