Health Stack Guide

Magnesium Glycinate 400mg vs 500mg: Which Capsule Option Fits Your Routine?

Choose between a 400mg, 120-capsule magnesium glycinate option and a 500mg, 240-capsule option by focusing on stated dosage, capsule count, dietary-feature preferences, and the $17.21 listed-price spread.

Last updated Jul 28, 2026

Shopping for sleep stress supplements can make a simple magnesium glycinate choice feel less simple: does a lower stated dosage fit your routine better, or do you prioritize a larger capsule count and a longer dietary-feature list? The two options here differ most clearly in listed dose, bottle size, and price, so the best pick depends on which of those practical details matters most to you.

Quick verdict

For a shopper prioritizing the larger listed bottle and the lower listed price, Magnesium Glycinate 500mg 240 Capsules Sleep Stress Relief Bone Muscle Support is the clearer direction. Its listed price is part of a $17.21 spread between the two choices, and it pairs 240 capsules with a 500 mg stated dosage.

Choose Magnesium Glycinate 400mg - 120 Capsules For Sleep, Stress Relief Support Bone when a 400 mg stated dosage and a 120-capsule format are the details you want to center in your routine. It is the higher-priced option, so that preference should be deliberate rather than incidental.

At-a-glance comparison

OptionListed priceCapsule count and stated dosageSelected details
Magnesium Glycinate 400mg - 120 Capsules For Sleep, Stress Relief Support BoneUSD 34.19120 capsules; 400mgAlliwise; light yellow; adult, men, women, and unisex departments
Magnesium Glycinate 500mg 240 Capsules Sleep Stress Relief Bone Muscle SupportUSD 16.98240 capsules; 500 mgBIO NUTRI; capsule formulation; adult and unisex departments

Where each option wins

Magnesium Glycinate 400mg - 120 Capsules For Sleep, Stress Relief Support Bone wins for shoppers who specifically want the 400 mg listed dosage. The title and dosage both align on that amount, while the 120-capsule count keeps the format straightforward. Its light yellow color is also specified for anyone who values that listed presentation detail.

Magnesium Glycinate 500mg 240 Capsules Sleep Stress Relief Bone Muscle Support wins on bottle count and ingredient-preference detail. It has twice the listed capsule count of the 120-capsule option, and its attributes include dairy-free, gluten-free, gelatin-free, caffeine-free, non-GMO, and easy-to-swallow descriptors. The description also states that each capsule contains 500 mg of magnesium glycinate, equivalent to 90 mg of elemental magnesium.

Product notes

Magnesium Glycinate 400mg - 120 Capsules For Sleep, Stress Relief Support Bone

This Alliwise option makes sense when the deciding factor is a 400 mg listed dosage rather than moving to the 500 mg format. The product name, dosage detail, and 120-capsule count give it a clean, easy-to-identify profile for shoppers comparing capsule-based magnesium glycinate choices. It is also designated for adult, men, women, and unisex departments, and the listed color is light yellow. The trade-off is its 120-capsule bottle size: shoppers whose main priority is a larger count will find the other option more aligned with that goal. Its USD 34.19 listed price also places it at the upper end of this two-item comparison.

Magnesium Glycinate 500mg 240 Capsules Sleep Stress Relief Bone Muscle Support

BIO NUTRI's option is a practical match for shoppers who want 240 capsules and a 500 mg stated dosage in a capsule formulation. Beyond the larger bottle count, its attribute list is especially useful for people narrowing choices around dietary preferences: it is described as dairy-free, gluten-free, gelatin-free, fish-free, egg-free, wheat-free, and caffeine-free, among other listed features. The description identifies one capsule as the daily serving and gives the elemental-magnesium equivalent. The limitation is straightforward: shoppers intentionally looking for a 400 mg listed dosage will not get that exact format here. At USD 16.98, it is the lower-priced choice in this comparison.

Final choice by use case

  • Pick the 400mg, 120-capsule Alliwise option if your priority is the 400 mg stated dosage and a smaller listed bottle count.
  • Pick the 500mg, 240-capsule BIO NUTRI option if you want the larger capsule count, the stated dietary-feature list, and the lower listed price.
  • Use dosage as the tie-breaker if bottle size is secondary: the decision is between the explicitly listed 400 mg and 500 mg formats, not a one-size-fits-all choice.
Products in this article
Magnesium Glycinate 400mgUSD 34.19View on eBayMagnesium Glycinate 500mg 240 Capsules Sleep Stress Relief Bone Muscle SupportUSD 16.98View on eBay
Magnesium Glycinate 400mgUSD 34.19View on eBayMagnesium Glycinate 500mg 240 Capsules Sleep Stress Relief Bone Muscle SupportUSD 16.98View on eBay