Swanson Standardized Milk Thistle 120 Capsules
- Special Ingredients: Milk Thistle
- Item Form: Capsule
- Dosage Form: Capsule
- Package Quantity: 1
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A straightforward standardized milk thistle capsule at a common 250 mg, 80% silymarin ratio, useful for anyone who specifically wants extract standardization.
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ASIN: B00068S5XUModel: SWO161Category: Milk Thistle Supplements & Seeds
Overview
Swanson Milk Thistle is a standardized herbal capsule supplement, 250 mg of milk thistle seed extract per capsule standardized to 80% silymarin, sold in a 120-capsule bottle.
Standardizing to 80% silymarin ties potency to a measured percentage rather than raw seed weight, which is what separates this from generic, unstandardized milk thistle powder. Model SWO161.
- 250 mg milk thistle seed extract per capsule
- Standardized to 80% silymarin
- 120 capsules per bottle
- Capsule form
Who it's for
People building a daily milk thistle routine who want a fixed, standardized silymarin dose rather than raw seed powder of unknown potency.
Pros and cons
- Standardized to 80% silymarin for consistent potency
- 120-capsule count covers roughly four months at one a day
- Capsule form for straightforward daily dosing
- No stated dosing frequency or testing detail in the listing
- Single-ingredient formula, no combination liver-support herbs
Performance notes
Standardization to 80% silymarin means each 250 mg capsule delivers consistent active compound content batch to batch, unlike unstandardized milk thistle where silymarin levels can vary widely.
Specifications
| Brand | Swanson |
|---|---|
| Model | SWO161 |
| Dimensions & fit | |
| Item Weight | 0.22 poundshigher than 59% of 33 milk thistle supplements & seeds |
| Capacity & performance | |
| Age Range Description | Adult |
| Construction & materials | |
| Material Features | Natural |
| Included components | |
| Package Quantity | 1 |
| Unit Count | 120 |
| Other details | |
| Special Ingredients | Milk Thistle |
| Item Form | Capsule |
| Dosage Form | Capsule |
| Container Type | Bottle |
| Is Product Expirable | Yes |
| Primary Supplement Type | Milk Thistle Seed Extract 250 Mg |
| Number Of Items | 1 |
| Recommended Uses For Product | Antioxidant |
| Legal Disclaimer | These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. |
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Frequently asked questions
How much silymarin is in each Swanson Milk Thistle capsule?
Each 250 mg capsule is standardized to 80% silymarin.
How many capsules come in the Swanson Milk Thistle SWO161 bottle?
The bottle contains 120 capsules.
What form is Swanson Milk Thistle sold in?
It comes as a capsule, not a liquid or powder.