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Milk Thistle

Solgar
4.8
★ ★ ★ ★ ★
(930 ratings)
Milk Thistle 100 mg
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Score79
A long-lasting, focused formula delivers good everyday value, with modest potency and incomplete extract details as the main trade-offs.
How scoring works
Quantity:250 Capsule(s) • (250 servings)
Goals:
Detoxification

Score 79

A long-lasting, focused formula delivers good everyday value, with modest potency and incomplete extract details as the main trade-offs.
How scoring works

Also available as

1 option
100 servings Milk Thistle 100 mg • 100 Capsule(s) • 100 servings $18.74 ($0.18 per serving)
$38.46($0.15 per serving)
iHerb
$ 38.46
Vitacost
$ 40.53
Amazon
$ 38.46
Daily Vita
$ 44.54
Report prices

Analysis

A standardized milk thistle extract supplies a defined silymarin component, while whole powder broadens the plant material in each capsule. The pairing is coherent and avoids unrelated actives.

The label does not disclose a standardization percentage or source plant part. A conventional dry capsule also offers no stated absorption advantage for the silymarin fraction.

The large count favors people who want to reorder less often, and the per-serving value is attractive. Buyers focused on maximum verified potency may prefer a larger disclosed active amount or a phytosome.

Who is it for
  • Regular users who want a large supply
  • Adults seeking a focused milk thistle capsule
  • Shoppers balancing clarity and cost
Best for
  • Long-term routines
  • Basic liver antioxidant support
  • Fewer repeat purchases

Pros

  • Standardized extract plus whole powder
  • Very long supply
  • Good serving value

Cons

  • Modest silymarin amount
  • No stated standardization percentage
  • No absorption-enhancing delivery

Warnings

  • Milk thistle may cause nausea, gas, or loose stools in sensitive users.
  • People allergic to ragweed, daisies, or related plants may also react to milk thistle.
  • Milk thistle may affect blood-sugar control; people using insulin or glucose-lowering medicine should check with their prescriber.

Nutrient quality

77 High impact

The standardized extract and whole-herb pairing form a coherent, relevant formula. A modest active amount and incomplete standardization details limit dose confidence.

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Ingredient transparency

81 Highest impact

Separate amounts for the extract and powder make the active formula easy to follow. Missing usage, excipient, plant-part, and standardization details leave some uncertainty.

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Customer satisfaction

70 High impact

The average rating is exceptionally strong, and the feedback volume supports confidence in it. No specific experience details are supplied to assess recurring complaints or purpose fit.

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Value for money

87 Highest impact

Economical long-term use and two relevant milk thistle forms support strong value. Incomplete active standardization prevents a top category comparison.

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Report analysis

Goals

Detoxification
Detoxification
Impact
High effect
B+ Goal FitB- Strength of SupportD+ CoverageA Formula Quality
Milk Thistle · 350 mg

A standardized extract paired with whole milk thistle powder directly supports liver-cell protection and antioxidant defenses. Human evidence for milk thistle is relevant, though results depend on a sufficiently characterized silymarin dose.

The label identifies a standardized extract and a separate silymarin amount, but the percentage and plant part remain unclear. Whole powder adds relevant material, though it cannot fully compensate for a slightly low active amount or missing absorption technology.

Study evidence
Milk Thistle Supportive 46 studies

Ingredients

IngredientAmount per serving
standardized Milk Thistle extract (Silymarin)
 100 mg
Milk Thistle powder
350 mg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Sugar Free Vegetarian
Report overview
Milk Thistle (Silymarin) · 100 mg OverallScore56
F Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyA+ Value

The label identifies a standardized extract and an active silymarin amount, but it does not state the percentage or plant part. The active amount is slightly below the preferred range, and the dry capsule lacks absorption technology. Its low serving cost supports reasonable value despite incomplete quality details.

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82 Performance

Super Milk Thistle

Nature's Way
Clearly disclosed silybin and silymarin give the milk-thistle component unusually strong active characterization. Its stronger combination of formulation quality and detoxification alignment makes it a more compelling focused option, although the added licorice may be unsuitable for some users.
84 Performance

Milk Thistle

Nature's Answer
A silymarin-labeled milk-thistle extract provides more assessable active disclosure than a plain plant-mass claim. Its stronger combination of formulation quality and detoxification alignment makes it a more compelling focused option, although the formula remains focused rather than broad.
85 Performance

Milk Thistle

Paradise
A silymarin-labeled milk-thistle extract provides more assessable active disclosure than a plain plant-mass claim. Its stronger combination of formulation quality and detoxification alignment makes it a more compelling focused option, although the formula remains focused rather than broad.
84 Budget

Milk Thistle

Kroeger Herb Products Co.
A silymarin-labeled milk-thistle extract provides more assessable active disclosure than a plain plant-mass claim. A lower serving cost improves routine value, although the formula remains focused rather than broad.
87 Budget

Milk Thistle Extract 175 mg

Lake Avenue Nutrition
A clearly labeled total-silymarin extract provides focused and readily assessable milk-thistle activity. A lower serving cost improves routine value, although the formula remains focused rather than broad.
77 Budget

Milk Thistle 30:1 Extract

Jarrow Formulas
A focused milk-thistle extract keeps the formula aligned with liver support, although the active silymarin yield is not stated. A lower serving cost improves routine value, although the active flavonolignan yield remains unclear.
79 Value

Milk Thistle (Silymarin)

Mason Natural
A silymarin-labeled milk-thistle extract provides more assessable active disclosure than a plain plant-mass claim. Favorable serving economics and a well-defined milk-thistle core create a useful quality-to-cost balance, although the formula remains focused rather than broad.
78 Value

Milk Thistle

Solgar
A silymarin-labeled milk-thistle extract provides more assessable active disclosure than a plain plant-mass claim. Favorable serving economics and a well-defined milk-thistle core create a useful quality-to-cost balance, although the formula remains focused rather than broad.
82 Value

Milk Thistle Phytosome 300 mg

Swanson
A named milk-thistle phytosome provides a better-characterized absorption strategy than a basic, unstandardized herb amount. Favorable serving economics and a well-defined milk-thistle core create a useful quality-to-cost balance, although the formula remains focused rather than broad.
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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