You're getting 420mg of **Magnesium** per capsule in bisglycinate form — one of the best-absorbed forms available, and gentle on your stomach. A single capsule already meets the full adult RDA (310–420mg), and the label suggests up to three daily, which would put you well above the supplemental upper limit. For most people, one capsule is plenty to support muscle relaxation, energy production, and sleep quality.
**Vitamin B6** is included at 5mg to help your body absorb and transport magnesium into cells — a well-studied synergy. However, it uses pyridoxine rather than the active P5P form, meaning your body needs to convert it before use. **Taurine** at 200mg is a nice addition for cardiovascular and cellular support, but falls well short of the 1,000–3,000mg range used in clinical research.
The main caveat is the taurine dose — at 200mg, you're getting about 20% of the minimum studied dose, so don't rely on this product for taurine's specific benefits. The magnesium itself, though, is solidly dosed and well-formulated.
BioStacks
Best for
Ingredients (3)
Magnesium
100%Dose
420 mg
Target
100–400 mg
Form
Premium
Vitamin B6
100%Dose
5 mg
Target
1.3–25 mg
Form
Premium
Taurine
20%Dose
200 mg
Target
1000–3000 mg
Form
—
Other Ingredients
No other ingredients listed
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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.