BioStacks
XtendLife

Marine Magnesium with Potassium

2 Capsules · 30 servings · $0.45/serving

iHerbAmazon

Best for

Heart

Ingredients (2)

Potassium

100%

Dose

110 mg

Target

99–500 mg

Form

Standard

Magnesium

100%

Dose

530 mg

Target

100–400 mg

Form

Budget

Other Ingredients (3)

Gum AcaciaBinder

Natural plant gum (acacia) used as a binder, stabilizer, and emulsifier in foods and supplements

Microcrystalline CelluloseBinder

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

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

How to Take It

Best taken in the evening

The Magnesium in it is what pulls this toward the evening. Take it with food — the potassium in it is what makes this kind of product feel nauseating on an empty stomach.

With food
Space it a couple of hours from Iron and Calcium

On the label

Take 2 capsules per day.

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

Price Check

$13.50

$10$20$50

Cheaper than 83% of 574 magnesium 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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