BioStacks
Life Extension

Milk Thistle

1 Capsule · 60 servings · $0.44/serving

68 / 100Good

Score Breakdown

Formulation
78
Safety
87
Final score
68/100

Ingredients (4)

Silibinins

100%

Dose

225 mg

Target

150–600 mg

Form

Milk Thistle extract

100%

Dose

750 mg

Target

150–600 mg

Form

Budget

Silymarin

100%

Dose

600 mg

Target

150–600 mg

Form

Not listed

Isosilybin A and Isosilybin B

40%

Dose

60 mg

Target

150–600 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.

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Vegetable StearateLubricant

A plant-derived salt of stearic acid (typically magnesium or calcium) used as a tablet lubricant

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

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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.