Guide
Milk thistle tea: how to make it, and what a cup actually provides
Milk thistle tea is easy to make from crushed seed, but silymarin dissolves poorly in water, so a cup delivers a small and unpredictable amount compared with the standardized extract capsules nearly all human research has used.
Milk thistle tea is usually made from crushed or ground seed steeped in hot water — but silymarin, the seed's active complex, dissolves poorly in water, so a cup delivers a small and unpredictable amount compared with the standardized extract capsules nearly all human research has used.
How to make it
A basic version: crush or coarsely grind 1–2 teaspoons of dried milk thistle seed and steep it in a cup of just-boiled water for 10–15 minutes, covered, then strain before drinking. Pre-made milk thistle tea bags (usually a blend with the dried leaf) are also sold and are simply steeped like any other herbal tea. Sweetening with honey is common; there's no research-based reason to add anything else.
What a cup actually provides
A 2018 chemistry and pharmacology review describes silymarin as poorly water-soluble, which is one reason a hot-water infusion pulls out a smaller and less consistent amount of it than a standardized capsule extract does. On top of that, a 2021 systematic review found silymarin's flavonolignans are poorly absorbed orally even when consumed directly, mainly because the body rapidly processes and excretes them before much reaches circulation. Put together, a cup of tea is working against two separate limitations — how much silymarin actually ends up in the water, and how much of that gets absorbed — that a standardized capsule extract at least partly addresses through concentration and, in some formulations, a phytosome complex built for absorption.
Is milk thistle tea good for the liver?
No trial has tested milk thistle tea as its own beverage, so this page can't attach a specific benefit to a cup of it. See milk thistle benefits: what the research does and doesn't show for what's actually been tested — extract-based capsules, in people with a diagnosed condition, at doses well above what a cup of tea is likely to deliver.
Questions people ask
How do you make milk thistle tea?
Steep 1–2 teaspoons of crushed or ground dried seed in a cup of hot water for 10–15 minutes, then strain. See the recipe above for the full version.
What are the benefits of milk thistle tea, or what does it do?
No trial has tested milk thistle tea specifically, so this page can't attach a benefit to a cup of it. See milk thistle benefits: what the research does and doesn't show for what's been tested in other forms, at what dose.
Where can you buy milk thistle tea?
It's sold as pre-made tea bags or loose dried seed at health food stores, pharmacies and online — a description of availability, not a claim about what it does.
How do you harvest milk thistle for tea?
Seeds are collected from the dried flower heads once they've turned brown, then dried further and stored whole or ground. That's a general foraging and gardening question beyond what this research page covers in detail.
Related reading: milk thistle powder vs liquid, milk thistle benefits: what the research does and doesn't show, and how to choose a good milk thistle supplement.
Sources
- Milk thistle (Silybum marianum): A concise overview on its chemistry, pharmacological, and nutraceutical uses in liver diseases A 2018 review describes milk thistle's active complex, silymarin, as led by silibinin, and concludes the clinical evidence for liver disease still needs stronger trials to confirm it.
- Systematic review of pharmacokinetics and potential pharmacokinetic interactions of flavonolignans from silymarin A 2021 systematic review found silymarin's active compounds are poorly absorbed orally, mainly because the body quickly processes and excretes them before much reaches circulation.
*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.