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Milk Thistle

Guides and comparisons How to read a supplement label in the EU

Milk thistle capsules, softgels, tablets and liquid extracts, from single-ingredient products to blends with dandelion and artichoke. Capsule titles show figures from 100 mg to 750 mg and packs of 30 to 200 capsules, and the liquids are about 30 ml. The ingredient list shows whether a product contains milk thistle seed, an extract or both, and whether silymarin is declared. In a blend, compare the amount of milk thistle on its own, because each plant has its own entry in the nutrition table.

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Portion prices are calculated from the net contents. Portion sizes differ between products; this is not a dosing recommendation. Read the full ingredients and directions on the product label.

Price per 100 mg silymarin = portion price ÷ declared silymarin per portion (mg) × 100. Only the standardised silymarin stated on the label is counted; other ingredients of a blend are not.

Milk Thistle, 150mg - 100 vcaps Jarrow Formulas Milk Thistle, 150mg - 100 vcaps Liver Refresh - 90 vcaps NOW Foods Liver Refresh - 90 vcaps Milk Thistle, Silymarin 100mg - 60 vegan caps Osavi Milk Thistle, Silymarin 100mg - 60 vegan caps Milk Thistle, 150mg - 200 vcaps Jarrow Formulas Milk Thistle, 150mg - 200 vcaps
Pack size 100 capsules 90 capsules 60 capsules 200 capsules
Main ingredients Milk thistle 30:1 extract, 80% total flavonoids (silymarin) Milk thistle extract with a herbal blend, glutathione, alpha-lipoic acid and other ingredients Milk thistle extract standardised to 80% silymarin; cellulose capsule Milk thistle 30:1 extract, 80% total flavonoids (silymarin)
Label portion 1 capsules 3 capsules 1 capsules 1 capsules
Silymarin per label portion 120 mg 240 mg 100 mg 120 mg
Pack price €21.99 €20.99 €5.99 €37.99
Price per portion €0.22 €0.70 €0.10 €0.19
Price per 100 mg silymarin €0.18 €0.29 €0.10 €0.16
Allergen information See the manufacturer’s full allergen statement. See the manufacturer’s full allergen statement. See the manufacturer’s full allergen statement. See the manufacturer’s full allergen statement.
Certifications — — GMP HACCP GMP NSF Certified
Label information Label information Label information Label information Label information

Prices include VAT for Ireland. Courier delivery: €6.99; free from €65.00. Estimated delivery: 2–4 working days.

Product facts checked: 2026-10-28.

Frequently asked questions

What is silymarin on a milk thistle label?

Silymarin is the name for a group of compounds found in milk thistle seed. Some labels declare it, either in milligrams or as a percentage of the extract. That figure is separate from the amount of extract in each capsule, so note which of the two a product states before comparing.

What do double strength and maximum strength mean on milk thistle products?

They are manufacturer wording with no fixed definition, so two products that carry the same words can differ. Compare the milligrams of milk thistle in each capsule and the capsules in the daily serving, and check whether those milligrams are seed, extract or the combined weight of several plants.

Why do some milk thistle products also list dandelion, artichoke or yellow dock?

These are combination formulas, and the ingredient list names every plant in descending order of weight. The nutrition table gives each amount separately, so the amount of milk thistle is only part of the serving. To compare a blend with a single-ingredient capsule, use that amount instead of the combined milligrams.