Jarrow Formulas Milk Thistle Supplement 150 mg. 30:1 Milk Thistle Extract Standardized to…
- Milk Thistle
- Capsule
- 200
- Unflavoured
- More reviewed than 93%
A standardized 30:1 milk thistle extract at a common 150mg dose, sized for extended daily use without needing a refill for months.
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How it ranks among the 76 milk thistle we track
4.6★ across 10,346 Amazon ratings, Bayesian-smoothed toward the category average.
10,346 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
2,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 76 milk thistle we track - how the scorecard works · full milk thistle data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Milk thistle extract from Jarrow Formulas at 150mg per capsule, using a 30:1 extract standardized to 80% total flavonoids, packaged as 200 veggie capsules for up to 200 days of use.
A 30:1 extraction ratio means roughly 30 parts raw milk thistle seed were concentrated into 1 part extract, and standardizing to 80% flavonoids gives a consistent active compound level rather than relying on raw herb weight alone. Milk thistle is most commonly taken for liver function support, as stated on the label.
- 150mg milk thistle, 30:1 extract per capsule
- Standardized to 80% total flavonoids
- 200 veggie capsules, up to 200 day supply
- Supports liver function
Who it's for
Suits buyers wanting a standardized, concentrated milk thistle extract for daily long-term use given the 200 day supply sizing. Not the right choice for anyone wanting a lower-strength or non-standardized raw herb product.
Strengths and trade-offs
Drawn from this product's published specifications.
- 30:1 concentrated extract
- Standardized to 80% total flavonoids
- 200 count covers up to 200 days
- No review data available in this listing
- 150mg is a moderate rather than high dose for this herb
Performance notes
The 30:1 concentration and 80% flavonoid standardization aim to deliver a consistent dose of milk thistle's active compounds capsule to capsule, rather than the variable potency of raw dried herb.
Specifications
| Brand | Jarrow |
|---|---|
| Model | SIL200 |
| Form | Capsule |
| Count | 200 |
| Flavor | Unflavoured |
| Diet | Gluten Free |
How it compares
This product against the closest alternatives we track in milk thistle.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Jarrow Formulas Milk Thistle Supplement 150 mg. 30:1 Milk Thistle Extract Standardized to…This product | 4.6 / 5 | 10,346 | 4.4 / 5 |
| Bronson Milk Thistle Silymarin Marianum & Dandelion Extract Liver Health SupportBronson | 4.7 / 5 | 39,909 | 4.6 / 5 |
| Zazzee USDA Organic Milk Thistle 30:1 ExtractZazzee | 4.7 / 5 | 11,691 | 4.6 / 5 |
| Nature's Bounty Milk Thistle 1000mgNature's | 4.7 / 5 | 9,983 | 4.6 / 5 |
| Nutricost Milk Thistle Extract 240 Capsules for 240 Servings Per BottleNutricost | 4.8 / 5 | 4,973 | 4.6 / 5 |
Similar milk thistle from other brands
Questions about the Jarrow SIL200
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What does the 30:1 extract ratio mean?
It means the extract is concentrated from roughly 30 parts raw milk thistle seed into 1 part extract.
How long does one bottle last?
The listing states up to a 200 day supply at 200 capsules.
What is milk thistle commonly used for?
The label lists it as a dietary supplement for liver function support.