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Milk Thistle Extract Powder

On Sale: Starting at $8.60
Regular Price:$10.75
You Save:$2.15 (20%)
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  • 25g Bag - $8.60 was $10.75
  • 50g Bag - $15.60 was $19.50
  • 100g Bag - $25.80 was $32.25
  • 250g Bag - $60.40 was $75.50
  • 500g Bag - $108.80 was $136.00
  • 1kg Bag - $196.00 was $245.00
  • 1.5kg Bag - $280.00 was $350.00
  • 25kg - $1,737.70
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You are buying Milk Thistle seed extract. Milk thistle (Silybum marianum), also called silybum, holy thistle and silymarin, is a member of the Asteraceae or daisy family. Other common names are Marian thistle, Mediterranean thistle, Mary thistle, variegated thistle and blessed milk thistle. The use of milk thistle in traditional medicine dates back thousands of years to the time of the ancient Greeks and Romans.

The compounds in milk thistle seed, which are dominantly flavonoids, include silymarin, silybin, isosilybin and silibinin. Flavinoids act as powerful anti-oxidants, scavenging for reactive oxygen species in vivo. The flavonoid compounds found in milk thistle seed have been extensively studied for its role in supporting liver function.

PureBulk's Milk thistle extract powder is standardized to contain 80% silymarin flavinoids, of which are 30% silibinin (silybin) by weight.

{Note: Milk thistle is NOT the same as milkweed. They are two distinctly different plants.}

*NOTE: These statements have not been evaluated by the Food and Drug Administration.
This product is not intended to diagnose, treat, cure or prevent any disease.

Supplement Facts
Milk Thistle 80%, Silybin 30% Supplement Facts

Disclaimer: This scientific independent research is provided by Aisle7 and is for informational use only. PureBulk provides this information as a service but does not endorse it. Likewise, Aisle7 does not recommend or endorse any specific PureBulk products.


Milk Thistle

Also indexed as:Carduus marianus, Silybum marianum
Milk Thistle: Main Image© Steven Foster
Botanical names:
Carduus marianus, Silybum marianum

Parts Used & Where Grown

Milk thistle is commonly found growing wild in a variety of settings, including roadsides. The dried fruit (also called achenes) are used to produce modern herbal extracts.

  • Reliable and relatively consistent scientific data showing a substantial health benefit.
  • Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
  • For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.

Our proprietary “Star-Rating” system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.

For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.

This supplement has been used in connection with the following health conditions:

Used for AmountWhy
Liver Support
420 to 600 mg of silymarin daily3 stars[3 stars]
Though not a treatment for withdrawl symptoms, milk thistle extract is commonly recommended to counteract the harmful effects of alcohol on the liver, as this herb speeds the regeneration of injured liver cells.
420 mg of silymarin daily2 stars[2 stars]
Supplementing with milk thistle may support the liver.
Liver Cirrhosis
420 mg of silymarin daily2 stars[2 stars]
Supplementing with milk thistle may protect liver cells and improve function.
Type 2 Diabetes
200 mg per day of silymarin 2 stars[2 stars]
Supplementing with silymarin (a component of milk thistle) may help lower blood sugar levels.
Refer to label instructions 1 star[1 star]
Milk thistle extracts in capsules or tablets may be beneficial in preventing gallstones.

Traditional Use (May Not Be Supported by Scientific Studies)

Medical use of milk thistle can be traced back more than 2,000 years. Nicholas Culpeper, the well-known 17th-century pharmacist, cited its use for opening “obstructions” of the liver and spleen and recommended it for the treatment of jaundice.

Copyright © 2014 Aisle7. All rights reserved.

Learn more about Aisle7, the company.

Learn more about the authors of Aisle7 products.

The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2015.

Customer Reviews
Review by Alexander on 7/7/2014
The quality of the milk thistle extract sold by Purebulk is better than from other suppliers I've tested: the extract has slighty lighter, more yellowish color and is much less water soluble than most, which how it should be. Also, I find it more effective. For that reason, I'm happy to pay slightly more but I get what I expect.

Like Heidi, I'd also advise to treat the extract with soya lecithin before intake for best results, specially for those that want to treat liver disease (one method is to dissolve both in boiling pure alcohol, then cool down and remove the alcohol) Reading up on milk thistle phytosome will help to understand the reasons behind taking so much trouble.
Review by Rohit on 11/20/2012
I really loved the taste of it and its effective as well. Also the price is also very competitive.

All in all a great product. Thanks Purebulk
Review by Heidi on 10/11/2012
I love the artichoke like flavor of this Milk Thistle. I have been mixing it with my Lecithin and they go great together!
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Size Conversion
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  • 0.88 oz
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  • 11lb