Reviewed and updated September 12, 2026 · Alurevia Editorial Team
Magnesium glycinate, citrate and oxide all supply magnesium, but they are different compounds with different formulation characteristics. The useful comparison is not simply “which one is best?” but what each form contributes to the finished product and how much elemental magnesium the serving actually provides.
Glycinate vs citrate vs oxide at a glance
| Form | Paired with | Approx. elemental magnesium by compound weight | Practical characteristic |
|---|---|---|---|
| Magnesium glycinate | Glycine | ~14% | Chelated form commonly used in single-form and multi-form products |
| Magnesium citrate | Citric acid | ~16% | More soluble form; can have a laxative effect at higher intakes |
| Magnesium oxide | Oxygen | ~60% | High elemental-magnesium density; less completely absorbed than several soluble forms |
Percentages are approximate and can vary with ingredient specification. Always use the finished product's Supplement Facts panel for its labelled dose.
Magnesium glycinate
Glycinate pairs magnesium with glycine. It contains a lower proportion of elemental magnesium by compound weight than oxide, so a larger amount of compound is needed to supply the same labelled elemental-magnesium amount.
Magnesium citrate
Citrate pairs magnesium with citric acid. The NIH lists citrate among forms that are absorbed more completely than magnesium oxide. Higher supplemental amounts can also have a digestive or laxative effect.
Magnesium oxide
Oxide contains a high proportion of magnesium by compound weight, making it useful in formulas designed to provide a large labelled magnesium dose in a relatively small amount of ingredient material. It is less completely absorbed than several more soluble forms.
Which one is best?
There is no universal winner. A glycinate-only shopper may want a glycinate product. Someone comparing dose density may view oxide differently. A multi-form formula can contain all three. The decision should consider elemental magnesium, serving size, full formulation, tolerability and professional advice where appropriate.
Where Alurevia fits
Alurevia Magnesium Complex contains all three — oxide, glycinate and citrate — plus malate, taurate, carbonate, aspartate and orotate. Magnesium oxide is the primary listed source. The formula provides 500mg elemental magnesium in one capsule.
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Frequently asked questions
Which has the most elemental magnesium by weight?
Magnesium oxide, at roughly 60% by compound weight, compared with approximately 16% for citrate and 14% for glycinate.
Which is absorbed better?
The NIH notes that citrate and several other more soluble forms are absorbed more completely than magnesium oxide. Finished-product performance still depends on dose, formulation and individual factors.
Does Alurevia contain magnesium glycinate?
Yes. Glycinate is one of eight named forms, but magnesium oxide is the primary listed source.
Source
National Institutes of Health, Office of Dietary Supplements: Magnesium Fact Sheet for Health Professionals.
This article is general supplement education and is not medical advice.