Standardized Plant Extract - TITREX®

Milk Thistle

The liver guardian: The most studied hepatoprotective in the world

Latin name

Silybum marianum (L.) Gaertn.

Family

Asteraceae

History & Botany

Milk thistle is native to the Mediterranean basin and is now widespread on all continents in wastelands and roadsides. Its name refers to a Christian legend: the white spots on its dark green, spiny leaves are said to be drops of the Virgin Mary's milk. Used for more than 2,000 years by the Greeks and Romans for liver, spleen, and chronic constipation problems, it is described by Pliny the Elder, Dioscorides, and medieval herbals as a major remedy for the hepatic system.

The isolation of silymarin dates back to 1968 by Wagner and Hörhammer. Since then, it has become one of the most studied medicinal plants in the world, with hundreds of studies confirming its hepatoprotective properties. Its use as an antidote to poisoning by death cap mushroom (Amanita phalloides) is clinically documented. The German Commission E (1986), the EMA, and the EFSA officially recognize its effects on liver health.

Morphology

Robust annual or biennial plant, 60 cm to 1.80 m tall. Very characteristic leaves: large, spiny, dark green, and glossy with white marbling on the veins, the immediate distinctive sign. Tubular purple-pink flowers surrounded by imposing spiny bracts. Seeds (achenes) topped with a silky pappus, easily dispersed by the wind.

Part used & extraction

The seeds (achenes), harvested in summer at full maturity. Naturally contain 2 to 6% silymarin. Standardized extracts with 70-80% silymarin (Commission E and EFSA standard). Sometimes the leaves for mild digestive infusions. Main producers: Germany, Hungary, Egypt, Argentina.

Silybum marianum (L.) Gaertn.

Purple-pink flower and dark green leaves with characteristic white marbling

Organoleptic Characteristics

Appearance

Seeds are dark brown marbled and glossy, oval and flattened. Dry extract powder is yellow-brown to golden, fine and homogeneous, highly concentrated in silymarin.

Odor

Slightly aromatic and sweet, subtle and pleasant. The whole seed releases a slightly hazelnut note. The dry extract is almost odorless to very slightly herbal.

Taste

Slightly bitter, hazelnut-like, well tolerated without an unpleasant aftertaste. The absence of a pronounced taste makes it one of the easiest plant extracts to take.

Extract

Powder is yellow-brown to golden brown, highly concentrated in silymarin (70-80%). Poor solubility in cold water; encapsulated forms are preferred for optimal bioavailability.

Active Principles & Biochemistry

Medicinal Properties & Traditional Use

Hepatoprotective & Regenerative

Silymarin makes liver membranes impermeable to toxins and stimulates the active regeneration of hepatocytes. Effective against toxic, alcoholic, and drug-induced hepatitis. Slows the progression of hepatic fibrosis to cirrhosis, documented over 3 years of study. Partial antidote to death cap mushroom poisoning.

Digestive & Choleretic

Stimulates bile secretion and improves bile flow. Documented improvement in blood sugar control and cholesterol reduction in type 2 diabetic patients. Supports pancreatic function. Useful for dyspepsia, gallstones, and dietary excesses.

Antioxidant & Supportive Oncology

Protects liver cells during hepatotoxic chemotherapies (cisplatin, doxorubicin). Increases intrahepatocellular glutathione peroxidase. The EFSA authorizes the claim "contributes to liver protection and detoxification" for standardized extracts with 70-80% silymarin.

Antifibrotic & Metabolic

Inhibits the differentiation of hepatic stellate cells into collagen-producing myofibroblasts, a key mechanism for slowing fibrosis. Documented hypoglycemic and cholesterol-lowering properties. Growing interest in the complementary management of non-alcoholic fatty liver disease (NAFLD/NASH).