PlainVitamins

Milk Thistle Extract Formula

by Quest · capsule · 60 capsules

  • Off the market since October 2023 (NIH)
  • UPC 0 58371 21785 5
  • DSLD label 23933
  • Serving 3 capsules

Milk Thistle Extract Formula by Quest lists 5 ingredients, 5 with an amount per serving of 3 capsules, such as 42 mg of milk thistle (silybum marianum) seed 50:1 extract, 60 mg of wild yam, 31 mg of dandelion (taraxacum officinale) root 5:1 extract and 31 mg of burdock (artium lappa) root 5:1 extract. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2013.

What is in Milk Thistle Extract Formula?

Each row as the label prints it, per serving of 3 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Milk Thistle Extract Formula: Supplement Facts rows against the market (DSLD label 23933, January 2026 release)
IngredientAmount% DVAmong products listing it
Milk Thistle (Silybum marianum) seed 50:1 extractas SilymarinMilk Thistle (Silybum marianum) seed 50:1 extract (Form: STD to 80% silymarin) PlantPart: seed Genus: Silybum Species: marianum Note: equivalent to 2100 mg raw herb42 mgMilk Thistle in Milk Thistle Extract Formula against 1,277 products42 mg per serving; the middle half of products list 90 mg to 300 mg, the median 175 mg.42 mg

91% of 1,277 products listing milk thistle give more (median 175 mg). Per day at the most servings: 84 mg.

Wild Yamas DiosgeninWild Yam (Form: STD to 6% diosgenin) PlantPart: root Genus: Dioscorea Species: villosa60 mgWild Yam in Milk Thistle Extract Formula against 214 products60 mg per serving; the middle half of products list 15 mg to 215 mg, the median 50 mg.60 mg

Higher than 53% of 214 products listing wild yam (median 50 mg). Per day at the most servings: 120 mg.

Dandelion (Taraxacum officinale) root 5:1 extractDandelion (Taraxacum officinale) root 5:1 extract PlantPart: root Genus: Taraxacum Species: officinale Note: equivalent to 155 mg raw herb31 mgDandelion in Milk Thistle Extract Formula against 793 products31 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.31 mg

86% of 793 products listing dandelion give more (median 100 mg). Per day at the most servings: 62 mg.

Burdock (Artium lappa) root 5:1 extractBurdock (Artium lappa) root 5:1 extract PlantPart: root Genus: Artium Species: lappa Note: equivalent to 155 mg raw herb31 mgBurdock in Milk Thistle Extract Formula against 302 products31 mg per serving; the middle half of products list 76 mg to 400 mg, the median 145 mg.31 mg

86% of 302 products listing burdock give more (median 145 mg). Per day at the most servings: 62 mg.

Licorice (Glycyrrhiza glabra) root 4:1 extractLicorice (Glycyrrhiza glabra) root 4:1 extract PlantPart: root Genus: Glycyrrhiza Species: glabra Note: equivalent to 40 mg raw herb10 mgLicorice in Milk Thistle Extract Formula against 888 products10 mg per serving; the middle half of products list 42 mg to 300 mg, the median 100 mg.10 mg

93% of 888 products listing licorice give more (median 100 mg). Per day at the most servings: 20 mg.

Source: NIH ODS Dietary Supplement Label Database, label 23933 (entered August 23, 2013), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 91% of the 1,277 products that print an amount of milk thistle list more than its 42 mg of milk thistle (median 175 mg).
  • 93% of the 888 products that print an amount of licorice list more than its 10 mg of licorice (median 100 mg).

The NIH database records 2 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Milk Thistle Extract Formula's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Recommended Dose (Adults): Take 3 capsules twice daily. Use for minimum of three weeks to see beneficial effects. Consult a health care practitioner for use beyond six weeks.
Warnings
Risk Information: Do not use if you are pregnant, breastfeeding, allergic to the Asteraceae (daisy) family, if you have decreased male libido, Gilbert's or Crigler-Najjar syndromes, gall bladder or liver disorder, bile duct obstruction, intestinal blockage or spasm, pancreatic cancer, haemolytic anemia, impaired kidney function, high blood pressure or heart disease. Consult a health care practitioner if you have sex hormone dependent cancers (breast, endometrial, ovarian, prostate, etc.), diabetes or hypokalemia, or if taking psychoactive medication, hormonal therapies, diuretics, potassium-depleting agents, or MAO inhibitors.
DO NOT USE IF SEAL UNDER CAP IS BROKEN.
Risk Information: Do not use if you are pregnant, breastfeeding, allergic to the Asteraceae (daisy) family, if you have decreased male libido, Gilbert's or Crigler-Najjar syndromes, gall bladder or liver disorder, bile duct obstruction, intestinal blockage or spasm, pancreatic cancer, haemolytic anemia, impaired kidney function, high blood pressure or heart disease.
Consult a health care practitioner if symptoms persist.
KEEP OUT OF REACH OF CHILDREN.
Allergens and what it does not contain
This product does not contain dairy, egg, gluten, shellfish, soy or sulfites.
No artificial colours, flavours or preservatives
Storage
STORE IN A COOL, DRY PLACE.

Source: label statements in DSLD label 23933.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Magnesium Stearate, Silicon Dioxide, Gelatin.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): PREMIUM - QUALITY ASSURED; {Recycle}; SunOpta A healthy products company.

How many labels does Milk Thistle Extract Formula have?

One label is on file, entered on August 23, 2013.

  1. Label 23933 (current) Entered August 23, 2013 · off the market October 12, 2023 · 60 capsules · UPC 0 58371 21785 5

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names SunOpta Inc. (manufacturer), Acton, ON. All Quest products.

Where next?