BioStacks
Sunwarrior

MAGZen

3 Capsules · 30 servings · $1.33/serving

iHerbAmazon

Best for

Heart

Ingredients (5)

Magnesium L-Threonate (Magtein)

100%

Dose

1000 mg

Target

100–400 mg

Form

Premium

Magnesium Bisglycinate Chelate (Albion)

100%

Dose

420 mg

Target

100–400 mg

Form

Premium

Magnesium

100%

Dose

147 mg

Target

100–400 mg

Form

Not listed

GABA

100%

Dose

100 mg

Target

100–300 mg

Form

—

L-Theanine

50%

Dose

50 mg

Target

100–250 mg

Form

—

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

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.

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