BioStacks
Source Naturals

St. John's Wort 450

1 Tablet · 90 servings

33 / 100Poor

Score Breakdown

Formulation
33
Safety
100
Final score
33/100

Ingredients (2)

St. John's Wort

75%

Dose

450 mg

Target

600–1200 mg

Form

Not listed

Hypericins

0%

Dose

1 mg

Target

600–1200 mg

Form

Other Ingredients (6)

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

Calcium CarbonateBuffer

Common calcium salt used as a buffering agent, filler, or mineral fortification in supplements

Microcrystalline CelluloseBinder

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

Microcrystalline CelluloseBinder

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

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

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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.