BioStacks
Natural Factors

Milk Thistle 250 mg

1 Capsule × 3/day · 60 servings · $0.37/serving

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Ingredients (3)

Milk Thistle extract

100%

Dose/day

750 mg

Target

150–600 mg

Form

Budget

Dandelion

33%

Dose/day

165 mg

Target

500–1500 mg

Form

—

Turmeric

17%

Dose/day

82.5 mg

Target

500–1500 mg

Form

Not listed

Other Ingredients (4)

Rice FlourFiller

Rice-based ingredients carry risk of inorganic arsenic contamination (FDA and Consumer Reports). Rice accumulates arsenic from soil at higher rates than other grains. Used as a cheap filler — adds nothing beneficial.

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

How to Take It

Take it anytime

Silymarin barely dissolves in water — a fat-containing meal meaningfully improves absorption.

With a meal containing fat
Split into 3 doses across the day

On the label

1 capsule 3–6 times per day with meals or as directed by a health professional.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$21.98

$10$20$50

Near the median of 89 milk thistle supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.

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