Organic Milk Thistle Seed Oil

5.00 out of 5
(4 customer reviews)


SKU: 00015 Category:


Cold-Pressed, Unfiltered Milk Thistle Oil

Organic Milk Thistle Seed Oil is used as a supplement to support the liver and digestive system. The oil has a mild taste and is good for finished dishes and smoothies. In cosmetics milk thistle oil is often used because of its high content of linolein acid. The oil is mixed with more stable oils like organic jojoba due to its short shelf life.

Production steps

  • The raw oil is being pressed in small batches.
  • After pressing the oil sludge settles to the bottom of the oil barrel.
  • The fresh oil can now be carefully decanted into bottles.
  • Followed by capping and proper labeling.

Nutritional value


3700 kJ / 900 kcal

Fat100 g
Saturated fatty acids8.0 g
Monounsaturated fatty acids78.1 g
Polyunsaturated fatty acids13.9 g



C16:0 Palmitic acid: 7-9%
C16:1 Palmitoleic acid: max 2%
C18:0 Stearic acid: 4-7 %
C18:1 Oleic acid: 26-35 %
C18:2 Linoleic acid: 48-58 %
C18:3 Linolenic acid: max 2%

Cold Pressing Technique

At Ostro Organics we use a modern low-pressure screw press to extract the oil from certified organic milk thistle seeds. Focusing on low pressure and low heat extraction. Higher heat means higher yield but also more alteration when it comes to its molecular structure. At Ostro Organics, we press every oil at a different heat point. Ranging from 9° to 29° degrees Celsius.

Ostro Organics presses oils under very low pressure and minimal temperatures. Currently ranging between 9° and 29° Celsius. Resulting in low yield oil extraction, obtaining a yield of roughly 55% depending on the oil content of the milk thistle seed.

Higher yields could be reached by applying industry standards including more pressure, heat, solvents and adding other agents to the extraction process.

When consuming Ostro Organics milk thistle seed oil in this pure, fresh, natural and real form, you will NOT be consuming hydrogenated fats or trans fatty acids.


Canadian grown, raw, certified organic milk thistle seed pressed extra cold into fresh, raw, certified organic milk thistle seed oil.

Certified Organic Oil quality

  • Extra Cold Pressed
  • Pure and Fresh
  • Raw and Unrefined
  • Not mechanically filtered
  • Certified Organic by PACS 16-661
  • Free of Trans-Fats
  • Vegan and Gluten Free

Ostro Organics is certified organic by the Pacific Agricultural Certification Society (PACS) Certification Number 16-661

Non Genetically Modified Organisms

Ostro Organics uses no GMO’s. This is also verified by the Organic Certification Body PACS. For more details visit PACS online. Click here


Using Milk Thistle Oil at Home

Some of our favorite ways of using these freshly pressed culinary oils:

  • marinades and dressings
  • smoothies and cold beverages
  • yogurts and cereals
  • spreads and pesto’s
  • finishing oil
  • dipping and garnish
  • Popcorn

Add on vegetables, fish, meats, pasta, cheese, soups, sandwiches.

Ostro Food Blog

Find out more about benefits and creative inspiration on how else you can use Ostro Organics Oils on our food blog. Frequently updated.

Ostro Recipes

Find some of our most favorite and most popular recipes. Just visit our recipe section.

Check our recipe section for more inspiration . . .


Ostro Organics fresh culinary oils are pressed fresh, in small batches in Victoria B.C. Canada.


Best store fresh milk thistle oil in you refrigerator after receiving and opening. Consume within 10 to 15 weeks after opening is best. Keep away from direct sunlight and any heat source!

Milk thistle seed oil is often promoted for its liver-protecting effects.

It’s regularly used as a complementary therapy by people who have liver damage due to conditions like alcoholic liver disease, non-alcoholic fatty liver disease, hepatitis and even liver cancer ( Source, Source, Source).

Milk thistle seed oil may also beused to protect the liver against toxins like amatoxin, which is produced by the death cap mushroom and is deadly if ingested (Source Source).

Studies have shown improvements in liver function in people with liver diseases who have taken a milk thistle supplement, suggesting it could help reduce liver inflammation and liver damage (Trusted Source).

Although more research is needed on how it works, milk thistle is thought to reduce damage to the liver caused by free radicals, which are produced when your liver metabolizes toxic substances.

One study also found that it may slightly extend the life expectancy of people with cirrhosis of the liver due to alcoholic liver disease (Trusted Source).

However, the results from studies have been mixed, and not all have found milk thistle products to have a beneficial effect on liver disease.

Thus, more studies are needed to determine what dose and length of treatment are needed for specific liver conditions (Trusted Source, Trusted Source, Trusted Source).

And although milk thistle is commonly used as a complementary therapy for people with liver diseases, there’s currently no evidence that it can prevent you from getting these conditions, especially if you have an unhealthy lifestyle.

Summary Milk thistle may help protect the liver against damage caused by disease or poisoning, though more research is needed.

Milk thistle is generally considered safe when consumed orally (Trusted Source, Trusted Source).

In fact, in studies where high doses were used for long periods, only about 1% of people experienced side effects (Trusted Source).

When reported, side effects for milk thistle are generally gut disturbances like diarrhea, nausea or bloating.

Some people are advised to be cautious when taking milk thistle. These include:

  • Pregnant women: There is no data on its safety in pregnant women, so they are usually advised to avoid this supplement.
  • Those allergic to the plant: Milk thistle may cause an allergic reaction in people who are allergic to the Asteraceae/Compositae family of plants.
  • People with diabetes: The blood sugar-lowering effects of milk thistle may put people with diabetes at risk of low blood sugar.
  • Those with certain conditions: Milk thistle can have estrogenic effects, which may worsen hormone-sensitive conditions, including some types of breast cancer.

Summary Milk thistle is generally considered safe. Nevertheless, pregnant women, those allergic to the Asteraceae family of plants, those with diabetes and anyone with an estrogen-sensitive condition should seek medical advice before taking it.

Milk Thistle Seed Oil for the Skin

New studies are being conducted to evaluate its efficacy in human skin cells.  Just as it appears to repair and promote rejuvenation of other organ cells, the results look promising.  What’s more, the science points to Milk Thistle actually protecting cells from future damage!

Many parallels exist between your skin and liver.  As the largest organ of your body, your skin naturally absorbs large amounts of what you place on it.  And, just like the filtering process of the liver, your skin excretes toxins through your sweat.  The appearance of your skin, therefore, is a good indicator of your internal health.  Acne, eczema, excess oil and dryness may all be indicators that your liver is not functioning as well as it could be.  Milk Thistle can assist with detoxification to make the liver run more smoothly.  In turn, skin may clear up and the anti-inflammatory properties of Milk Thistle may calm skin irritation and inflation.

More exciting science is pointing to topically applied Milk Thistle Seed Oil to protect our skin from UV Damage from the sun!

Silybum marianum has other common names including cardus marianus, milk thistle,[1] blessed milkthistle,[2] Marian thistle

Additional information

Weight 0.355 g
Dimensions 4 × 4 × 19.5 cm

100ml, 250ml, 750ml, 5L

4 reviews for Organic Milk Thistle Seed Oil

  1. 5 out of 5


    For years we have tried to get fresh milk thistle oil. Impossible.
    We found Ostro Organics by accident while holidaying in Whistler.
    Amazing product, delicious, tasty and I can only recommend trying it!
    We add it to every salad that we have.

  2. 5 out of 5


    Good evening. Thank you very much for your beautiful oil. You came highly recommended: )

  3. 5 out of 5


    We first saw you on a day trip to the Duncan farmers market and fell in love with your products. We use a teaspoon of milk thistle oil every day and miss it every time we run out. Highly recommend using it, sure makes a difference in our lives.
    Mike & Jonas

  4. 5 out of 5

    Rachel Hop (verified owner)

    You are a godsend. I have been trying to find a source of high quality, organic oils since the vendor at my local farmer’s market went out of business due to Covid. And to my delight, in addition you have some of these hard to find medicinal oils. The milk thistle oil has a lovely, mild taste.

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