This magnesium delivers 400mg per softgel, but it's **magnesium oxide** — a form your body absorbs at only about 4%. So while 400mg sits at the top of the supplemental range on paper, in practice you're getting a small fraction of that.
Where oxide does work is the gut: the unabsorbed magnesium pulls water into your bowel, which is why it's mainly used for occasional constipation, and why the label warns of diarrhea and caps you at one softgel. That's a real effect, just not the one most people buy magnesium for.
If your goal is sleep, muscle relaxation, or correcting low magnesium, a glycinate or citrate form is far better absorbed. For that goal this falls short; for occasional constipation, it does the job.
Best for
Ingredients (1)
Magnesium
100%Dose
400 mg
Target
100–400 mg
Form
Budget
Calories, macros & sodium.
Other Ingredients (6)
Medium Chain Triglyceride OilCarrier
Fractionated oils rich in C8/C10 triglycerides used as neutral carrier or anti-sticking agent
Soy LecithinEmulsifier
Widely used emulsifier derived from soybeans
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
BeeswaxCoating
Natural wax produced by honeybees, used as a coating and binding agent in softgels and tablets
How to Take It
Best taken in the evening
Magnesium oxide is poorly absorbed (~4%) and the most laxative form. Most of a dose stays in the gut, which is why it's mainly used for constipation — a poor pick if you're supplementing for magnesium itself.
On the label
Suggested use: Take one softgel daily, with a meal. For easier swallowing, take with water before and during ingestion.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
No price yet
What 574 magnesium supplements cost
Track this supplement in your stack
Get personalized insights, interactions, and coverage recommendations.
Get Started FreeSimilar Supplements
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.