This Pure Encapsulations **magnesium glycinate** delivers a sleep-and-muscle-relaxation dose of 120mg elemental magnesium per capsule in a well-absorbed, stomach-gentle form, clearing the clinical threshold with a single pill. That 120mg is the elemental amount your body actually uses, not the heavier compound weight, so one capsule already gives you a genuine therapeutic dose. The label's 1-to-4-capsule range lets you dial intake up to 480mg as your needs shift.

Glycinate is the magnesium form most studied for calm and sleep with minimal digestive upset, so the higher end of that range stays comfortable to take. If you're using it to wind down at night, two capsules (240mg) sits squarely in the studied range and makes a practical starting point. At 180 capsules a bottle, a one-a-day habit lasts six months, with heavier dosing shortening that proportionally.

BioStacks
Pure Encapsulations

Magnesium (Glycinate)

1 Capsule · 180 servings

iHerbAmazon

Best for

Sleep

Ingredients (1)

Magnesium

100%

Dose

120 mg

Target

100–400 mg

Form

Premium

Other Ingredients (2)

Ascorbyl PalmitateAntioxidant

Fat-soluble form of vitamin C used as preservative

Capsule ShellCapsule

Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.

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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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