Milk Thistle: Comparing Silymarin Standardization and Blends

Compare milk thistle by seed powder versus extract, silymarin standardization and amount, serving size, and added herbs.

This page is for general reference only and is not medical advice, diagnosis, treatment, or prescription. Research and regulatory status can change, so ask a qualified professional when medical judgment is needed.

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Milk thistle extract milligrams and silymarin milligrams are not interchangeable. Use the standardized percentage or declared silymarin amount.

What to compare on product labels

• Separate whole seed powder from concentrated extract.
• Check standardized silymarin percentage and actual amount per serving.
• Identify liver-support blends with artichoke, dandelion, NAC, or other ingredients.

Other names and search terms

Ingredients often compared together

Cautions

• Milk thistle is not a substitute for liver-disease treatment, and clinical evidence is not consistent across conditions or products.
• Check with a professional if you have ragweed-family allergies or take medicines.

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