Skip to product information
1 of 4

My Store

trunature Premium Milk Thistle 160 mg, 120 Vegetarian Capsules

trunature Premium Milk Thistle 160 mg, 120 Vegetarian Capsules

Regular price £15.62 GBP
Regular price Sale price £15.62 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.
Quantity

This item is only available online at Costco.com.  

Product details have been supplied by the Manufacturer, and are hosted by a third party.

trunature® Premium Milk Thistle 160 mg, 120 Vegetarian Capsules

  • One-per-day formulation 
  • Featuring Siliphos® Milk Thistle Extract for increased absorption
  • Supports a healthy liver†
  • USP verified

Benefits of Milk Thistle

  • Helps support healthy liver function†1,2
  • Has antioxidant activity, which helps protect against oxidative stress†1,3,4
  • May help support metabolic health, a key aspect of a healthy lifestyle†5,6,7
  • Supports the liver’s natural detoxification processes†1,8,9,10

Why Liver Support Is More Important Than Ever†

Studies indicate that milk thistle helps support liver function and promotes the liver’s natural detoxification process.†

Detoxification is just one of the 500 functions that the liver must perform, 24/7. The liver is like the body’s waste treatment plant. It breaks down unwanted substances and detoxifies them for removal from the body or recycles them into something the body needs.

Milk thistle has long been recognized as a plant that has beneficial, liver-supporting properties.† The National Institutes of Health (NIH) and the United States National Library of Medicine have catalogued over 400 scientific studies of milk thistle extract and its active constituents.
trunature Premium Milk Thistle, featuring high-absorption Siliphos® Milk Thistle Phytosome™, offers powerful support for liver health.† Our formula provides 160 mg of milk thistle extract, delivering 52 mg of silybin.

Silybin is the key active component of milk thistle; however, regular silybin is poorly absorbed and easily destroyed when it enters the stomach. Research has shown that the absorption of silybin is the key to unlocking the health benefits of milk thistle.†  

trunature Premium Milk Thistle contains high-absorption Siliphos, made to withstand the harsh environment of the gastrointestinal tract. Clinical research shows it has 4.6 times higher bioavailability compared to a milk thistle extract containing silybin.11

Advanced Milk Thistle Delivery Allows for Once-Daily Amounts† 

trunature Premium Milk Thistle contains high-absorption Siliphos made using a unique delivery system (phytosome) that formulates silybin with natural phospholipids – a key component of cell membranes. Phytosomes are fat-compatible, and because of this, they are more easily absorbed by the digestive tract, and from there to cells and ultimately the blood.12

Because of Siliphos’s increased absorption compared to other milk thistle extracts, lower amounts are needed, resulting in a one-per-day formula.†11

Supplement facts

OTHER INGREDIENTS: Vegetarian capsule (hypromellose, purified water), silica, croscarmellose sodium, magnesium stearate (vegetable grade).

SUGGESTED USAGE: 1 capsule per day. For additional liver support: 1 capsule 2–3 times per day. 

• No Soy • No Artificial Colors or Flavors • No Salt • No Sugar • No Gluten • No Lactose 

WARNING: If you are pregnant or nursing, consult your physician before taking this product. Keep out of reach of children.
The proprietary phytosome technology used in Siliphos attaches a milk thistle extract (silybin) to a phospholipid. Phytosome technology results in better absorption and bioavailability than compared to milk thistle extracts containing silybin.11,12
Phytosome® is a delivery form platform that increases the absorption of ingredients, improving their systemic bioavailability.
Quality is our top priority. That is why trunature Premium Milk Thistle is verified to meet the high standards of the United States Pharmacopeia (USP) for purity, potency, and quality manufacturing. The USP symbol assures this product will meet or exceed the benefits you expect from trunature Premium Milk Thistle.
What is the suggested number of servings per day?
One capsule per day. For additional liver support: 2–3 capsules per day or as directed by a physician.

Is milk thistle safe?
Milk thistle is generally safe when taken as directed.9

Can trunature Premium Milk Thistle be taken when pregnant and/or breastfeeding?
It is recommended that you consult with your physician prior to taking this product if you are pregnant or breastfeeding.

Is it ok to take milk thistle before bed?
Yes, it can be taken in the evening. It is not known to affect sleep.

What is silybin?
Milk thistle seeds contain several plant compounds that provide antioxidant support.† Silybin is the most abundant of these and is considered responsible for most of milk thistle’s health benefits. Silybin is a component of silymarin, a flavonoid complex in milk thistle. 

What is Siliphos? Siliphos is a phytosome technology that binds silybin with phosphatidylcholine, improving product stability and greatly increasing absorption. Siliphos is 4.6 times more easily absorbed than regular milk thistle.12

Is it safe to take with other supplements?
Milk thistle can be taken alongside other herbs and supplements. It supports overall wellness and may complement other ingredients that help maintain healthy blood sugar levels within the normal range.† For personalized guidance, including safety and potential interactions, it’s best to consult your health care provider.

Does trunature Premium Milk Thistle contain any animal products?
No, trunature Premium Milk Thistle is suitable for both vegetarians and vegans.

Does trunature Premium Milk Thistle contain any artificial colors, sweeteners, or preservatives? 
No. 

Does it contain gluten or soy?
No, this product is gluten-free and soy-free.

Does it contain GMOs? 
No, it is non-GMO.
1 Loguercio C, Andreone P, Brisc C, et al. Silybin combined with phosphatidylcholine and vitamin E in patients with nonalcoholic fatty liver disease: A randomized controlled trial. Free Radic Biol Med. 2012; 52(9): 1658-65.
2 Jin Y, Wang X, Chen K, et al. Silymarin decreases liver stiffness associated with gut microbiota in patients with MASLD: A randomized, double-blind, placebo-controlled trial. Lipids Health Dis. 2024; 23:239.
3 Di Costanzo A, Angelico R. Formulation strategies for enhancing the bioavailability of silymarin: The state of the art. Molecules. 2019; 24(11):2155.
4 Zhu HJ, Brinda BJ, Chavin KD, et al. An assessment of pharmacokinetics and antioxidant activity of free silymarin flavonolignans in healthy volunteers: A dose escalation study. Drug Metab Dispos. 2013; 41(9):1679-85.
5 Xiao F, Gao F, Zhou S, et al. The therapeutic effects of silymarin for patients with glucose/lipid metabolic dysfunction: A meta-analysis. Medicine (Baltimore). 2020; 99(40):e22249.
6 Mohammadi S, Asbaghi O, Afrisham R, et al. Impacts of supplementation with silymarin on cardiovascular risk factors: A systematic review and dose-response meta-analysis. Antioxidants (Basel). 2024; 13(4):390.
7 Ebrahimpour-Koujan S, Gargari BP, Mobasseri M, et al. Effects of Silybum marianum (L.) Gaertn. (silymarin) extract supplementation on antioxidant status and hs-CRP in patients with type 2 diabetes mellitus: A randomized, triple-blind, placebo-controlled clinical trial. Phytomedicine. 2015; 22(2):290-6.
8 Vargas-Mendoza N, Madrigal-Santillán E, Morales-González A, et al. Hepatoprotective effect of silymarin. World J Hepatol. 2014; 6(3):144-9. 
9 Milk Thistle Monograph. Last Updated 9/8/2025. Natural Medicines. [Accessed September 3, 2025]. Available: http://naturalmedicines.therapeuticresearch.com
10 Gillessen A, Schmidt HHJ. Narrative review summarizing silymarin’s supportive role in liver function and detox pathways. Adv Ther. 2020; 37:1279-97.
11 Méndez-Sánchez N, Dibildox-Martinez M, Sosa-Noguera J, et al. Superior silybin bioavailability of silybin-phosphatidylcholine complex in oily-medium soft-gel capsules versus conventional silymarin tablets in healthy volunteers. BMC Pharmacol Toxicol. 2019; 20(1):5.
12 Kidd P, Head K. A review of the bioavailability and clinical efficacy of milk thistle phytosome: A silybin-phosphatidylcholine complex (Siliphos®). Altern Med Rev J Clin Therapeut. 2005; 10:193-203.
View full details