Two capsules give you 500mg of elemental **magnesium** — a full dose that clears the 100–400mg supplemental range and covers the entire 310–420mg daily target on its own, with the evening-meal timing aimed at calm, muscle relaxation, and sleep.
The selling point is the seven different magnesium forms, which is a reasonable idea since each is absorbed through slightly different pathways. Just know it's a proprietary blend, so the split across those seven forms isn't disclosed — the number you can actually verify is that 500mg elemental total, and that's the figure that decides whether magnesium works for you.
One thing to watch: 500mg sits above the 350mg upper limit for supplemental magnesium, the point where loose stools become common. Taking it with food, as the label directs, helps soften that.
BioStacks
Best for
Ingredients (3)
Vitamin B6
100%Dose
2 mg
Target
1.3–25 mg
Form
Premium
Elemental Magnesium
100%Dose
500 mg
Target
100–400 mg
Form
Not listed
Manganese
56%Dose
1 mg
Target
1.8–5 mg
Form
Standard
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Nu-Flow (flow agent)
Not reviewed yet
Nu-MAG (proprietary blend)
Not reviewed yet
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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.