Each capsule delivers 125mg of **Magnesium** in the bisglycinate form — well-absorbed and gentle on your stomach. That's enough to put you at the low end of the clinical supplemental range (100–400mg), but if you're targeting sleep, stress, or muscle recovery, you'd likely want 2–3 capsules daily to reach the 250–400mg range where most benefits show up in research. Magnesium deficiency is extremely common, estimated to affect over half the population, so even one capsule adds meaningful support.

The small amount of **Vitamin C** (25mg as ascorbyl palmitate) is there as an antioxidant preservative, not a therapeutic dose — you'd need ten times that to enter the clinical range. Don't count on this product for vitamin C support.

With 180 capsules in the bottle, you have flexibility to adjust your daily dose based on your needs. At 2–3 capsules per day, you're looking at a 2–3 month supply and landing in the sweet spot for energy, muscle function, and relaxation support.

BioStacks
Metabolic Maintenance

Magnesium Glycinate

1 Capsule · 180 servings · $0.24/serving

iHerbAmazon

Best for

Sleep

Ingredients (2)

Magnesium

100%

Dose

125 mg

Target

100–400 mg

Form

Premium

Vitamin C

10%

Dose

25 mg

Target

250–2000 mg

Form

Budget

Other Ingredients (1)

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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