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Source Naturals

Source Naturals Ultra-Mag 5-in-1 Magnesium 360 Capsules

  • 360 vegan capsules
  • 5-in-1 magnesium blend: citrate succinic acid complex, glycinate, malate and more
  • Unflavored, vegan
  • Dairy, egg, gluten, soy and wheat free
  • Muscle, nerve, brain and skeletal support listed

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A very large bottle of five-form magnesium capsules for long-term use. Strength per capsule and serving size are not on the page.

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ASIN: B0D6TJX39VCategory: Magnesium Supplements

Overview

A shopper who takes magnesium daily gets a five-in-one blend of different magnesium forms here, packed into a very large bottle of vegan capsules. The formula is unflavored and free of the major food allergens.

Buying one big bottle with several magnesium forms suits people planning to stay on it for months. The page leaves out the amount per capsule and the serving size, so the real daily dose is unknown.

Who it's for

Adults who already know they tolerate magnesium and want several forms in one capsule at a large count. First-time users, or shoppers who need exact milligram amounts before buying, may prefer a smaller, clearer listing.

Pros and cons

Pros
  • Very large capsule count
  • Five magnesium forms
  • Free of major allergens
Cons
  • Amount per capsule not listed
  • Serving size not stated
  • Full ingredient list cut off

Performance notes

Each magnesium compound is paired with a different partner molecule, and those partners influence how the mineral is used. Citrate tends to loosen stools while glycinate tends to be gentler, so blends spread the effect. The spec text in the listing is cut off, so the last form in the blend is not confirmed.

Specifications

BrandSource Naturals
Supplement TypeMagnesium (as magnesium citrate succinic acid complex, glycinate, malate)
FormCapsule
DietVegan
AllergensDairy Free, Egg Free, Gluten Free, Soy Free, Wheat Free
Count360.0 Count
FlavorUnflavored
BenefitsBrain Health, Cardiovascular Health, Muscle Pain Control, Skeletal Support

Frequently asked questions

How long does a bottle of Source Naturals Ultra-Mag last?

The listing gives 360 capsules but no serving size, so the duration depends on the label directions.

Is Source Naturals Ultra-Mag vegan?

Yes, the title and diet field say vegan capsules.

Does Source Naturals Ultra-Mag contain common allergens?

The allergens field lists dairy, egg, gluten, soy and wheat free.

What does 5-in-1 mean on Ultra-Mag?

It refers to five magnesium forms. The listing names citrate succinic acid complex, glycinate and malate before the text is cut off.