Each capsule delivers 300mg of **Milk Thistle Extract** standardized to 80% silymarin — giving you 240mg of the active flavonoids responsible for liver-protective effects. That puts a single capsule right in the middle of the 150–600mg clinical range. The label suggests 1–3 capsules daily, so at the full 3-capsule dose you're getting 900mg, well above what most studies used.

**Dandelion** (100mg) and **Artichoke** (50mg) round out the formula as traditional liver-support herbs. Both are dosed well below their studied ranges (500–1,500mg for dandelion, 300–640mg for artichoke), so they're contributing minimally at these amounts. Artichoke has moderate clinical evidence for bile flow and digestion, but you'd need several times this dose to match the research.

The milk thistle itself uses a standard extract rather than a phytosome form, which means lower absorption of the key compound silybin. If your main goal is liver support, the silymarin dose is solid — but getting more silybin into your bloodstream would require a phytosome-bound form.

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BioStacks

NOW

Double Strength Milk Thistle Extract 300 mg

Capsule · 200 servings · $0.13/serving

33 / 100Poor

Supports

Score Breakdown

Formulation
33
Safety
100
Final score
33/100

Ingredients (3)

Milk Thistle Fruit, Seed Extract240 mg

Within effective range

Artichoke50 mg

17% of effective dose

Dandelion100 mg

20% of effective dose

Label Nutrition Facts

Active Ingredients

From the label · % Daily Value

DV%

Milk Thistle Fruit, Seed Extract300 mg

Silymarin Flavonoids240 mg

Dandelion100 mg

Artichoke50 mg

Other Ingredients

Fillers, coatings, and additives

4Safe

Magnesium StearateLubricant

Safe

Silicon DioxideAnti-caking

Safe

HypromelloseCapsule

Safe

Microcrystalline CelluloseBinder

Safe

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.