Product Description
The liver is the body's primary processing center — filtering blood, metabolizing nutrients, detoxifying compounds, producing the bile needed for fat digestion, and maintaining the glutathione levels that protect every cell from oxidative damage.
Endurance athletes put more demand on their livers than most people realize: high training volume accelerates metabolic waste production, NSAID use stresses liver cell function, and the volume of supplements, sports nutrition, and food that flows through the body during heavy training blocks requires the liver to operate at full capacity consistently.
Milk thistle has been used for centuries to support liver health but Thorne makes it possible for us. They introduced a patented phytosome technology that makes the difference between an herb that helps and one that mostly passes through.
Up to 10x Better Absorption – The active compound in milk thistle, silybin, is naturally water-soluble and poorly absorbed through the gut wall. Thorne's Siliphos® formula bonds silybin to phosphatidylcholine from sunflower — converting it into a lipid-soluble complex that crosses intestinal cell membranes with dramatically greater efficiency. Clinical studies show Siliphos® is absorbed up to 10 times better than standard milk thistle extract, meaning 180mg of this formula delivers more active compound to the liver than 1,000mg of conventional milk thistle.
The Master Antioxidant Preserved – Silybin supports the liver's built-in antioxidant system — specifically helping maintain healthy levels of glutathione and superoxide dismutase (SOD). Glutathione is the body's master antioxidant and the primary molecule used in liver detoxification pathways. When training volume is high, oxidative stress accumulates and glutathione gets depleted. Supporting its maintenance protects liver cell membranes from free radical damage and keeps detox pathways running at full capacity.
Liver Cell Protection and Membrane Integrity – The phospholipid component in Siliphos® doesn't just serve as a delivery vehicle — phosphatidylcholine is a structural component of cell membranes, and its presence actively supports and strengthens liver cell membrane integrity. This combination of silybin's antioxidant and anti-inflammatory properties with phosphatidylcholine's membrane support provides dual liver-protective benefit that neither ingredient delivers as effectively alone.
For athletes who regularly use NSAIDs, take multiple daily supplements, train at high volume, or want to proactively support the metabolic processing that underlies their nutrition and recovery strategy, Milk Thistle Phytosome is a meaningful foundational addition.
How to Use Thorne Milk Thistle Phytosome
Dosage: Take 1 capsule two to three times daily with food, or as recommended by your healthcare practitioner. Consistent daily use supports ongoing liver cell protection and glutathione maintenance throughout training cycles.
Taking with food supports absorption and mimics the liver's natural activation during active digestion.
- Gluten free
Supplement Facts
90 Servings
Serving Size: One Capsule
Serving Per Container: 90
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Silybin Phytosome (Silybum marianum extract (fruit) / Phospholipid complex from Sunflower) 180mg | ** | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Daily Value (DV) not established
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We do not accept returns on food items that have been opened, but we will issue a store credit if you are unsatisfied. In the event of a return, you must first contact us before sending back a return shipment.
Consumable products over $40 receive a 50% store credit. This includes specialty nutrition products such as ketones or supplements/vitamins.
Thorne Milk Thistle Phytosome FAQ's
Everything you need to know before getting started.
The liver processes everything passing through the body — metabolic byproducts from high training volume, the compounds from sports nutrition products and supplements, and any medications including NSAIDs that athletes frequently use for pain management. It also produces bile for fat digestion and maintains glutathione for antioxidant defense. High training loads, frequent supplement use, and NSAID reliance all increase the liver's workload, making proactive support meaningful for athletes training consistently at high volume.
Yes. Milk Thistle Phytosome pairs particularly well with Thorne Alpha-Lipoic Acid — ALA supports glutathione regeneration from a different angle (as a direct precursor and recycler), making the two complementary for athletes who want both liver cell protection and active glutathione support. It also pairs well with Thorne Betaine HCL & Pepsin or Advanced Digestive Enzymes for athletes managing comprehensive digestive and liver health together.
Phosphatidylcholine is both the delivery vehicle and an active ingredient. As a phospholipid, it's a structural component of cell membranes — bonding silybin to it doesn't just improve absorption, it also delivers liver cell membrane support directly. Phosphatidylcholine has its own hepatoprotective properties, helping strengthen and repair liver cell membranes against oxidative and mechanical stress.