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Milk Thistle

Nature's Answer
4.7
★ ★ ★ ★ ★
(1398 ratings)
Milk Thistle 175 mg
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Score84
Focused dosing and good value are strengths, though the active silymarin yield remains unspecified.
How scoring works
Quantity:60 Capsule(s) • (60 servings)
Goals:
Detoxification

Score 84

Focused dosing and good value are strengths, though the active silymarin yield remains unspecified.
How scoring works

Also available as

1 option
120 servings Milk Thistle 175 mg • 120 Capsule(s) • 120 servings $24.22 ($0.20 per serving)
$17.24($0.28 per serving)
iHerb
$ 17.24
Pure Formulas
$ 29.02
Amazon
$ 19.18
Vitacost
$ 17.24
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Analysis

The formula combines 175 mg of milk thistle seed extract with 20 mg of whole milk thistle. A single-capsule serving keeps use simple and the active weights are clearly stated.

Silymarin is named, but the label does not show a standardization percentage or separate marker yield. No phytosome or other absorption-enhancing delivery is included.

Adults seeking an affordable, uncomplicated milk thistle capsule are the clearest audience. Those wanting exact active dosing should select a product that states total silymarin or silybin.

Who is it for
  • Adults seeking a simple milk thistle capsule
  • People wanting extract plus whole herb
  • Users comfortable with conventional delivery
Best for
  • Daily milk thistle supplementation
  • Basic liver-support routines
  • Single-capsule use

Pros

  • Combines extract with whole herb
  • Clearly states both ingredient weights
  • Convenient one-capsule serving

Cons

  • Silymarin percentage is missing
  • No absorption enhancer is shown
  • Whole-herb addition is small

Warnings

  • Milk thistle may cause nausea, gas, or loose stools in sensitive users.
  • People allergic to ragweed-family plants may also react to milk thistle.
  • Milk thistle can alter metabolism of some prescription medicines, which matters for drugs requiring stable blood levels.

Nutrient quality

92 Highest impact

The label identifies silymarin from milk thistle seed, though the dry capsule lacks absorption enhancement. The stated silymarin amount is meaningful and receives a small whole-herb complement.

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Ingredient transparency

81 Highest impact

Active ingredients generally have stated amounts and no proprietary blend hides a dose. Serving counts are available, while full directions and the other-ingredients list are missing.

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Customer satisfaction

68 High impact

The supplied aggregate rating is strong and the rating volume provides some confidence in that metric. No comment-level evidence is available to assess recurring complaints or confirm how experience matches the intended purpose.

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Value for money

92 Highest impact

Meaningful stated potency and a focused design support strong serving value. The formula compares well with basic dry extracts because it identifies the silymarin amount.

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Report analysis

Goals

Detoxification
Detoxification
Impact
Highest effect
A Goal FitA Strength of SupportD+ CoverageA+ Formula Quality
Milk Thistle · 20 mg

A clearly identified silymarin extract provides strong and direct liver-protective support. The silymarin amount is well aligned with a meaningful daily serving.

The standardized active is paired with a small amount of whole seed, creating excellent depth in one pathway. Standardized extract with a small whole-herb component is a logical combination.

Study evidence
Milk Thistle Supportive 46 studies

Ingredients

IngredientAmount per serving
Milk Thistle Seed Extract (Silymarin)
 175 mg
Milk Thistle
20 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Milk Thistle (Silymarin) · 175 mg OverallScore64
D- Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyB+ Value

The label identifies 175 mg of silymarin from milk thistle seed, supporting a useful active dose. The dry capsule lacks technology to improve absorption, and the underlying standardization percentage is not stated. The low serving cost offers good value.

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84 Performance

Milk Thistle

Kroeger Herb Products Co.
<p>A separate silymarin amount from milk thistle seed makes potency unusually easy to assess. The clearer active profile or delivery form makes potency easier to judge than in the original, though any broader companion-ingredient role may be lost.</p>
82 Performance

Super Milk Thistle

Nature's Way
<p>Well-disclosed silymarin and silybin amounts form a strong milk thistle core, with artichoke adding relevant bile support. The clearer active profile or delivery form makes potency easier to judge than in the original, though any broader companion-ingredient role may be lost.</p>
86 Performance

Milk Thistle Extract 175 mg

Lake Avenue Nutrition
<p>A meaningful total silymarin amount from milk thistle seed makes potency straightforward to assess. The clearer active profile or delivery form makes potency easier to judge than in the original, though any broader companion-ingredient role may be lost.</p>
87 Budget

Milk Thistle Extract 175 mg

Lake Avenue Nutrition
<p>A meaningful total silymarin amount from milk thistle seed makes potency straightforward to assess. It costs less per serving than the original, while differences in extract amount, delivery format, or companion herbs should guide the final choice.</p>
80 Budget

Silymarin Complex

California Gold Nutrition
<p>Milk thistle anchors a coherent liver-support combination with dandelion, artichoke, turmeric, ginger, and black pepper. It costs less per serving than the original, while differences in extract amount, delivery format, or companion herbs should guide the final choice.</p>
78 Budget

Milk Thistle 30:1 Extract

Jarrow Formulas
<p>A concentrated single-ingredient extract provides focused liver-support value at a very accessible serving cost. It costs less per serving than the original, while differences in extract amount, delivery format, or companion herbs should guide the final choice.</p>
85 Value

Milk Thistle

Paradise
<p>A substantial stated silymarin amount provides focused milk thistle potency in a simple formula. The balance of disclosed milk-thistle quality and serving economy offers a favorable value trade-off, with formula breadth and delivery form remaining practical differences.</p>
79 Value

Milk Thistle

Solgar
<p>A standardized extract paired with whole milk thistle powder gives the formula a sensible, focused structure. The balance of disclosed milk-thistle quality and serving economy offers a favorable value trade-off, with formula breadth and delivery form remaining practical differences.</p>
82 Value

Milk Thistle Phytosome 300 mg

Swanson
<p>A branded milk-thistle phytosome uses phospholipid delivery to improve absorption of poorly absorbed silybin. The balance of disclosed milk-thistle quality and serving economy offers a favorable value trade-off, with formula breadth and delivery form remaining practical differences.</p>
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. The effect of silymarin on liver enzymes in patients taking isotretinoin: A randomized clinical trial.
    Mirnezami M; Jafarimanesh H; Rezagholizamenjany M; Alimoradian A; Ranjbaran M · Dermatologic therapy · 2021
    Randomized trial74 participantsDetoxification forMilk Thistle
  2. A randomized double-blind, placebo-controlled study of therapeutic effects of silymarin in β-thalassemia major patients receiving desferrioxamine.
    Moayedi B; Gharagozloo M; Esmaeil N; Maracy MR; Hoorfar H; Jalaeikar M · European journal of haematology · 2013
    Randomized trial97 participantsDetoxification forMilk Thistle
  3. Effect of aerobic training with silymarin consumption on glycemic indices and liver enzymes in men with type 2 diabetes.
    Ghalandari K; Shabani M; Khajehlandi A; Mohammadi A · Archives of physiology and biochemistry · 2023
    Randomized trial60 participantsDetoxification forMilk Thistle
  4. Impact of silymarin-supplemented cookies on liver enzyme and inflammatory markers in non-alcoholic fatty liver disease patients.
    Jaffar HM; Bader Ul Ain H; Tufail T; Hanif A; Malik T · Food science & nutrition · 2024
    Clinical trial64 participantsDetoxification forMilk Thistle
  5. Impact of Silymarin Supplements on Liver Enzyme Levels: A Systematic Review.
    Calderon Martinez E; Herrera D; Mogan S; Hameed Z; Jangda AA; Khan TJ; Mroke P; Sajid S; Shah YR; Baig I · Cureus · 2023
    Systematic review3,846 participants29 studies pooledDetoxification forMilk Thistle