Herbarium of the Ancients — Detailed MonographFR · EN

Milk Thistle

Silybum marianum
Please read before use: the indications below describe traditional and informational uses — they do not replace the advice of a healthcare professional. If in doubt, pregnant, breastfeeding, undergoing treatment, or for use in children, seek advice before use.
Enhanced precautions for this plant: Not recommended without medical advice in cases of liver or biliary tract disease (particularly biliary obstruction). Possible interactions with certain medications (metabolized by the liver): seek the advice of a pharmacist or physician if undergoing treatment. As a precaution, avoid in pregnant or breastfeeding women and in young children without the advice of a healthcare professional. People allergic to plants in the Asteraceae family (daisy, artichoke, chrysanthemum) should exercise caution.
Infusion — Seeds / fruits

Milk Thistle Seed Infusion

The seeds, lightly crushed beforehand to promote extraction, are infused in hot water. Due to the low solubility of the active compounds in water, this form remains of moderate traditional use; a professional may recommend a more suitable form if needed. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.

Tincture — Seeds / fruits

Seed Tincture

The seeds are macerated in alcohol for several weeks to obtain a concentrated tincture, a form traditionally favored by herbalists for this plant. Use and dosage must be established with a trained professional, due to the concentration of active principles. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.

Decoction — Leaves

Leaf Decoction

Fresh or dried leaves are brought to a gentle boil for a few minutes, then filtered. This preparation, of rarer and less documented use than that of the seeds, is traditionally reserved for occasional use and upon advice from a professional. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.

Where to find it

Obtaining the Plant

Milk Thistle grows spontaneously in sunny wastelands and embankments of southern Europe; it is also cultivated in certain medicinal plant gardens, and its dried seeds are widely available in herbal shops.

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