Magnesium Guide: Forms, Labels, Serving Sizes & 90-Day Supply

Reviewed and updated September 12, 2026 · Alurevia Editorial Team

This guide brings Alurevia’s magnesium education into one place: how to read elemental magnesium, what common magnesium forms mean, how single-form products differ from magnesium complexes, how serving size changes bottle duration, and where Alurevia Magnesium Complex fits.

If you are comparing magnesium supplements, the most useful starting points are the elemental magnesium per serving, serving size, magnesium forms, capsule count and product directions — not a single marketing phrase on the front of the bottle.

Start with the product facts

Alurevia Magnesium Complex provides 500mg elemental magnesium in one veggie capsule. Each bottle contains 90 capsules, and the labelled use is one capsule per day, making one bottle a 90-day supply.

The formula contains eight named magnesium sources: oxide, glycinate, malate, taurate, citrate, carbonate, aspartate and orotate. Magnesium oxide is listed first and is the primary source; the other seven forms are present alongside it in smaller amounts.

90-DAY SUPPLY — SUBSCRIBE & SAVE 10%

Make the 90-day routine automatic — and save.

One 90-capsule bottle is designed to last about three months at one capsule per day.

  • $35.00 one-time purchase
  • $31.50 every 3 months with Subscribe & Save
  • Save $3.50 on every 90-day delivery
  • Only 4 scheduled deliveries per year — not monthly
  • No need to remember to reorder
  • Pause, skip or cancel anytime

VIEW MAGNESIUM COMPLEX & SUBSCRIBE & SAVE →

High-demand magnesium questions

For the broad questions people most often use when researching magnesium, start here:

1. Understand elemental magnesium

“Elemental magnesium” is the amount of magnesium supplied by a magnesium compound. It is different from the total weight of magnesium oxide, glycinate, citrate or another compound.

If you want to compare two supplements accurately, use the magnesium amount shown in the Supplement Facts panel and check how many capsules make one serving.

Read: What Is Elemental Magnesium? How to Read a Supplement Label →

2. Learn what the different magnesium forms mean

A magnesium form tells you what magnesium is chemically paired with. Different compounds vary in characteristics such as elemental magnesium density, solubility and absorption. The form name alone does not prove that one finished supplement is universally superior.

Read: The 8 Forms of Magnesium, Explained →

3. Compare magnesium oxide and magnesium glycinate

Magnesium oxide has a high proportion of elemental magnesium by compound weight. Magnesium glycinate pairs magnesium with glycine and contains a lower proportion of elemental magnesium by compound weight. Those differences matter when comparing serving size and formulation, but the finished product label remains the source of truth.

Read: Magnesium Oxide vs Magnesium Glycinate →

4. Compare magnesium glycinate and citrate

Glycinate and citrate are two commonly discussed magnesium compounds. Rather than choosing based on a headline alone, compare the labelled elemental magnesium, serving size, formulation and your individual needs.

Read: Magnesium Glycinate vs Citrate →

5. Understand magnesium glycinate specifically

Magnesium glycinate is magnesium paired with glycine. It can be used as the sole magnesium source in a product or included as one component of a multi-form complex.

Read: What Is Magnesium Glycinate? →

6. Magnesium complex vs single-form magnesium

A single-form supplement uses one magnesium compound. A magnesium complex combines more than one. More forms do not automatically mean more benefit, and a single-form product is not automatically better either. The choice should be based on the actual label, serving and formulation you want.

Read: Magnesium Complex vs Single-Form Magnesium →

7. Work out how long a bottle lasts

Capsule count alone does not tell you the number of days in a bottle. Divide the number of capsules by the labelled capsules used per day. With Alurevia, 90 capsules at one capsule per day equals a 90-day supply.

Read: How Long Does a 90-Capsule Magnesium Bottle Last? →

8. Build a simple supplement routine

There is no need to invent a universal “perfect” time of day for every magnesium supplement. Start with the product-specific directions and choose a consistent routine you can follow.

Read: How to Build a Simple Magnesium Routine →

9. Magnesium, sleep and evening routines

Magnesium has established nutritional roles in normal nerve and muscle function, but a magnesium supplement is not a sleep medicine and is not intended to treat insomnia or another sleep disorder.

Read: Magnesium and Sleep: Why Your Mind Won’t Switch Off at Night →

10. Magnesium and training

Magnesium supports normal muscle function and cellular energy production. Those normal physiological roles are relevant to active people, but magnesium should not be presented as a guaranteed treatment for cramps, soreness or injury.

Read: Magnesium and Muscle Recovery →

How Alurevia’s subscription works

Because one Alurevia bottle lasts 90 days at the labelled use, the subscription is set to one bottle every three months rather than one bottle every month.

  • One-time purchase: $35.00
  • Subscribe & Save: $31.50 every 3 months
  • Saving: $3.50 per 90-day delivery
  • Standard schedule: 4 deliveries per year
  • Pause, skip or cancel anytime

VIEW MAGNESIUM COMPLEX & SUBSCRIBE & SAVE →

Safety

The Food and Nutrition Board sets a tolerable upper intake level of 350mg per day for magnesium from supplements for adults, separate from magnesium naturally present in food. Alurevia Magnesium Complex provides 500mg elemental magnesium per capsule, which is above that supplemental upper limit.

Follow the product directions and speak with a healthcare professional before use, particularly if you have kidney disease, take prescription medicines, are pregnant or nursing, or use other supplements containing magnesium.

Authoritative source

National Institutes of Health, Office of Dietary Supplements: Magnesium Fact Sheet for Health Professionals.

This page is for general educational purposes and is not medical advice. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.