Puritan's Pride Milk Thistle 4:1 Concentration Extract 250 mg
- Milk Thistle
- Capsule
- 180
- Unflavoured
- More reviewed than 97%
A concentrated 4:1 milk thistle extract sold as a 6 month vegetarian capsule supply, aimed at people wanting traditional liver support without frequent reordering.
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How it ranks among the 76 milk thistle we track
4.6★ across 28,107 Amazon ratings, Bayesian-smoothed toward the category average.
28,107 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
7,000+ 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
Puritan's Pride's milk thistle supplement uses a 4:1 concentrated extract at 250mg per capsule, sold as a 180 count bottle marketed as a 6 month supply.
A 4:1 concentration means each capsule is derived from roughly four times that weight in raw milk thistle, so it's stronger per milligram than a plain powdered herb capsule. It carries a soy allergen despite being vegetarian, a distinction worth checking before buying.
- 250mg 4:1 concentrated extract
- 180 capsules, 6 month supply
- Vegetarian capsules
- Contains soy
Who it's for
People wanting a long-running milk thistle supply for traditional liver support, in vegetarian capsule form, who don't have a soy allergy.
Strengths and trade-offs
Drawn from this product's published specifications.
- 6 month supply per bottle
- Concentrated 4:1 extract
- Contains soy allergen
Performance notes
The 4:1 concentration extract packs more of the plant's active compounds into each 250mg capsule than a standard whole-herb powder would, which is the basis for the potency claim on the label.
Specifications
| Brand | Puritan's |
|---|---|
| Model | 1946 |
| Form | Capsule |
| Count | 180 |
| Flavor | Unflavoured |
| Diet | Vegetarian |
| Allergens | Soy |
How it compares
This product against the closest alternatives we track in milk thistle.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Puritan's Pride Milk Thistle 4:1 Concentration Extract 250 mgThis product | 4.6 / 5 | 28,107 | 4.5 / 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 |
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Questions about the Puritan's 1946
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How long does one bottle of Puritan's Pride Milk Thistle last?
It's sold as a 6 month supply at 180 capsules.
Is Puritan's Pride Milk Thistle vegetarian?
Yes, the capsules are vegetarian.
Does this milk thistle supplement contain soy?
Yes, soy is listed among its allergens.