For relaxation, muscle function, and sleep support, this powder delivers 200mg of **Magnesium** in the bisglycinate form — right in the middle of the clinical range (100–400mg). Bisglycinate is one of the best-absorbed forms of magnesium and is known for being gentle on your stomach.

The powder format lets you mix it into water or juice and adjust your dose easily. With 50 servings per container and only citric acid as an inactive ingredient, you're getting a clean, flexible supplement without unnecessary fillers.

If you need higher-end magnesium support (closer to 300–400mg), you'd need to double scoop, which cuts the container life in half. One scoop per day covers a moderate maintenance dose but may not be enough if you're significantly depleted.

BioStacks
Natural Factors

Magnesium Bisglycinate 200 mg

Powder · 2.4 Gram · 50 servings · $0.28/serving

iHerbAmazon

Best for

Sleep

Ingredients (1)

Magnesium

100%

Dose

200 mg

Target

100–400 mg

Form

Premium

Other Ingredients (1)

Citric AcidAcidulant

Natural acid derived from citrus fruits

How to Take It

Best taken in the evening

Magnesium bisglycinate is the gentlest form on the gut and the one most people take at night. Absorption doesn't change with the clock — consistency does.

With or without food
Space it a couple of hours from Iron and Calcium

On the label

Suggested usage: Take 1 scoop (2.4 g) mixed with water or juice once per day or as directed by a health professional.

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

Price Check

$13.97

$10$20$50

Cheaper than 80% of 579 magnesium supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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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