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Milk Thistle Extract 1000 mg

4.5
★ ★ ★ ★ ★
(33 ratings)
Milk Thistle 1000 mg
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Score71
Convenient liquid delivery and organic sourcing are useful, but missing standardization leaves the active silymarin dose unknown.
How scoring works
Liquid
Quantity:2 Liquid(s) • (59 servings)
Goals:
Detoxification

Score 71

Convenient liquid delivery and organic sourcing are useful, but missing standardization leaves the active silymarin dose unknown.
How scoring works
$12.99($0.22 per serving)
iHerb
$ 12.99
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Analysis

A liquid organic extract offers convenient dosing and a direct milk-thistle approach to antioxidant and liver-cell support. The single active ingredient keeps the purpose easy to understand.

The listed 1,000 mg extract sounds substantial, yet the label does not state a silymarin percentage or active yield. Plant part and extraction ratio are also absent, so potency cannot be compared reliably with standardized extracts.

Low serving cost supports everyday accessibility, while the liquid format may suit people who dislike capsules. It fits basic, flexible use better than shoppers seeking a verified high-potency silymarin dose.

Who is it for
  • Adults who prefer liquid supplements
  • People seeking simple milk-thistle support
Best for
  • Flexible drop-based dosing
  • Basic liver and antioxidant support

Pros

  • Organic milk thistle extract
  • Liquid format avoids capsules
  • Focused single-ingredient formula

Cons

  • No silymarin percentage
  • Plant part is not identified
  • Extraction ratio is not disclosed

Warnings

  • Milk thistle can cause digestive upset in some users; stop or reduce use if symptoms persist.
  • People allergic to ragweed-family plants may also react to milk thistle.
  • Milk thistle may affect blood sugar, so people using glucose-lowering medicine should discuss it with their clinician.

Nutrient quality

78 High impact

Liquid delivery may aid dispersion, and organic sourcing is a useful quality signal. The extract weight appears substantial, but missing silymarin yield prevents a meaningful potency judgment.

Ingredient transparency

73 High impact

The active ingredient has a stated amount without a hidden proprietary blend. Standardization or source details, daily-use directions, and non-active ingredients remain incomplete.

Customer satisfaction

50 Lower impact

The supplied average rating is positive and is supported by very small review count. No detailed feedback is available to assess repeated complaints or purpose-specific experiences.

Value for money

79 High impact

A low qualitative serving cost and focused formula provide some value. Missing active-marker potency prevents a confident comparison with standardized extracts.

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Goals

Detoxification
Detoxification
Impact
Moderate effect
B+ Goal FitF Strength of SupportF CoverageA- Formula Quality
Milk Thistle · 1000 mg

Milk thistle provides a direct route to liver-cell and antioxidant support. A seemingly substantial extract amount is difficult to interpret because the active silymarin yield is not stated.

Liquid delivery and organic sourcing are useful qualities. Missing plant-part, extraction-ratio, and standardization details keep the product from being a dependable high-potency option.

Study evidence
Milk Thistle Supportive 46 studies

Ingredients

IngredientAmount per serving
organic Milk Thistle extract
1000 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Organic
Report overview
Milk Thistle · 1000 mg OverallScore26
F Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyC Value

Liquid delivery may improve solubility compared with a basic dry capsule, and the serving cost is low. The extract lacks a silymarin percentage and plant-part disclosure, so active potency cannot be verified. Affordability and convenient dosing help, but uncertain standardization keeps it from being a dependable high-potency option.

View ingredientView products
Loading alternative details
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.
79 Performance

Milk Thistle (Silymarin)

Mason Natural
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.
85 Budget

Milk Thistle

Paradise
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.
79 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.
80 Value

Milk Thistle

Kirkman
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.
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Sources

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

  1. Are alterations needed in Silybum marianum (Silymarin) administration practices? A novel outlook and meta-analysis on randomized trials targeting liver injury.
    Shahsavari K; Ardekani SS; Ardekani MRS; Esfahani MM; Kazemizadeh H; Jamialahmadi T; Iranshahi M; Khanavi M; Hasanpour M · BMC complementary medicine and therapies · 2025
    Meta-analysis3,545 participants55 studies pooledDetoxification forMilk Thistle
  2. 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
  3. 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
  4. A double-blinded randomized controlled trial of silymarin for the prevention of antituberculosis drug-induced liver injury.
    Luangchosiri C; Thakkinstian A; Chitphuk S; Stitchantrakul W; Petraksa S; Sobhonslidsuk A · BMC complementary and alternative medicine · 2016
    Randomized trial55 participantsDetoxification forMilk Thistle
  5. Effect of 8 Weeks milk thistle powder (silymarin extract) supplementation on fatty liver disease in patients candidates for bariatric surgery.
    Mirhashemi SH; Hakakzadeh A; Yeganeh FE; Oshidari B; Rezaee SP · Metabolism open · 2022
    Observational studyDetoxification forMilk Thistle
  6. A randomized controlled trial to assess the safety and efficacy of silymarin on symptoms, signs and biomarkers of acute hepatitis.
    El-Kamary SS; Shardell MD; Abdel-Hamid M; Ismail S; El-Ateek M; Metwally M; Mikhail N; Hashem M; Mousa A; Aboul-Fotouh A; El-Kassas M; Esmat G; Strickland GT · Phytomedicine : international journal of phytotherapy and phytopharmacology · 2009
    Randomized trial105 participantsDetoxification forMilk Thistle
  7. Evaluation of Hepatoprotective Effect of Silymarin Among Under Treatment Tuberculosis Patients: A Randomized Clinical Trial.
    Marjani M; Baghaei P; Kazempour Dizaji M; Gorji Bayani P; Fahimi F; Tabarsi P; Velayati AA · Iranian journal of pharmaceutical research : IJPR · 2016
    Randomized trial70 participantsDetoxification forMilk Thistle
  8. The hepatorenal protective effects of silymarin in cancer patients receiving chemotherapy: a randomized, placebo-controlled trial.
    Erfanian SS; Ansari H; Javanmard SH; Amini Z; Hajigholami A · BMC complementary medicine and therapies · 2024
    Randomized trial100 participantsDetoxification forMilk Thistle
  9. 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
  10. 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
  11. 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