Same market · same category

Magnesium 250 mg, 250 Tablets vs Albion Chelated Magnesium, 120 Vegetable Capsules

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The short version

At a glance

Value: Magnesium 250 mg, 250 TabletsLower cost per 100 mg elemental magnesium
Active dose: Magnesium 250 mg, 250 TabletsHigher declared elemental magnesium per label serving
Label-day units: Magnesium 250 mg, 250 TabletsFewer counted tablets, capsules, softgels, or gummies across the label-directed day

The products declare different Magnesium form; this difference does not establish superiority.

Side by side

Declared facts and derived metrics

Cost bands use USD. Product pages show exact listed prices with their verification dates.

Show differences only

Magnesium 250 mg, 250 Tablets and Albion Chelated Magnesium, 120 Vegetable Capsules comparison
Fact	Magnesium 250 mg, 250 Tablets at iHerb (opens in a new tab)21st Century	Albion Chelated Magnesium, 120 Vegetable Capsules at iHerb (opens in a new tab)Bluebonnet Nutrition
Magnesium details
Elemental magnesium	Leads250 mg	200 mg
Magnesium form	Magnesium oxide	Magnesium bisglycinate
Cost / 100 mg	Leads$0.01	$0.20
Counted units / label day	Leads1	2
Shared facts
Brand	21st Century	Bluebonnet Nutrition
Label serving size	1 tablet	2 Capsules
Servings per container	250	60
Delivery form	Tablet	Capsule
Availability	In stock	In stock
Selected retailer	iHerb	iHerb
Product last verified	Jul 17, 2026	Jul 19, 2026
Tax included	Tax inclusion not confirmed	Tax inclusion not confirmed
Shipping included	Shipping excluded from comparison	Shipping excluded from comparison

How to read this comparison

Compare elemental magnesium per serving—not compound weight.
Note the declared form and counted units across the label-directed day.
Use cost per 100 mg—not product-specific daily cost—to compare value.

Calculated values use the published category formulas. They do not change when the page language changes.

Pair-specific label analysis

21st Century Magnesium tablets vs Bluebonnet Albion Chelated Magnesium capsules

21st Century lists 250 mg of elemental magnesium from magnesium oxide in one tablet per label-directed day, while Bluebonnet lists 200 mg from magnesium bisglycinate chelate in two capsules. The products also differ in counted units, magnesium form, package size, and the selected retailer price snapshot.

Written by Paolo Tozzo · Publisher and reviewer

Last reviewed August 2, 2026

How this pair differs

21st Century's label directs one tablet per day and declares 250 mg of elemental magnesium from magnesium oxide. Bluebonnet's label directs two capsules per day and declares 200 mg of elemental magnesium from magnesium bisglycinate chelate. That makes the label-day comparison one counted unit versus two, without implying that either form is absorbed, tolerated, or used better.

Package and price context

The selected offer snapshot is $7.99 for 250 tablets for 21st Century and $23.60 for 120 capsules for Bluebonnet. Using the label directions and package counts, the products provide different numbers of label-directed days, so package price alone is not the same as price per label day.

What this comparison can establish

The comparison can establish the declared elemental amount, labeled source form, counted units, package quantity, and attributed price snapshot. It cannot establish safety, effectiveness, bioavailability, tolerance, or personal suitability. Those questions require context beyond these labels and retailer records.

Attribution and freshness

Sources and freshness

Check the dated manufacturer, label, and retailer records behind the displayed facts and prices.