BioStacks
Solaray

St. John's Wort 300 mg

1 Capsule · 60 servings · $0.58/serving

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Ingredients (3)

St. John's Wort Aerial Extract

50%

Dose

300 mg

Target

600–1200 mg

Form

Not listed

St. John's Wort Aerial

3%

Dose

15 mg

Target

600–1200 mg

Form

Not listed

0.3% Hypericin

0%

Dose

0.9 mg

Target

600–1200 mg

Form

Standard

Other Ingredients (3)

MaltodextrinBinder

Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.

Rice ExtractFiller

Rice-based ingredients carry risk of inorganic arsenic contamination. Vague labeling — 'rice extract' does not specify what is extracted or standardized. Used as a cheap filler with no supplemental benefit.

HypromelloseCapsule

Plant-derived capsule material from cellulose

How to Take It

Best taken in the morning

Take earlier in the day with food. Check the conflicts below — it interacts seriously with serotonergic compounds.

With food

On the label

Use only as directed. Take 1 tablet daily with a meal or glass of water.

Do not combine with 5-HTP, SAMe or Tryptophan

Each of these raises serotonin activity on top of St. John's Wort, and together they can trigger serotonin syndrome — agitation, rapid heartbeat, raised blood pressure. Not without medical supervision.

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

Price Check

$34.59

$10$20

Pricier than 96% of 24 st. john's wort 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.

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