Choosing between sleep stress supplements can come down to a simple trade-off: do you want a broader ingredient combination, or a container designed around more declared servings? These two Amer Don magnesium glycinate options are nearly the same listed price, but their formulas and serving structures point to different priorities.
Quick verdict
Choose Magnesium Glycinate 500mg With Zinc & Vitamin D3 if a 500 mg magnesium glycinate serving with zinc, vitamin D3, and vitamin B6 is your main priority. Choose Magnesium Glycinate 400mg - Chelated High Absorption if the stated 60 servings per container better suits your routine than the 30 servings in the 500mg option. The listed-price spread is just $0.01, so formula and container duration are the more meaningful tie-breakers.
At a glance
| Detail | Magnesium Glycinate 500mg With Zinc | Magnesium Glycinate 400mg Chelated |
|---|---|---|
| Listed price | USD 13.98 | USD 13.99 |
| Brand and condition | Amer Don; New | Amer Don; New |
| Date of manufacture | 5/2026 | 4/2026 |
| Expiration date | 4/2028 | 3/2028 |
Where each formula wins
Magnesium Glycinate 500mg With Zinc & Vitamin D3 has the later printed expiration date: 4/2028, compared with 3/2028 for the 400mg chelated option. That gives it a straightforward edge for shoppers who want the later of the two listed dates.
Magnesium Glycinate 400mg - Chelated High Absorption stands out for its attribute list, which includes alcohol-free, allergen-free, all natural, eco-friendly, gelatin-free, and gluten-free descriptions. Those named characteristics make it the more fitting pick when those label preferences matter in your supplement selection.
Product notes
Magnesium Glycinate 500mg With Zinc & Vitamin D3
Pick Magnesium Glycinate 500mg With Zinc & Vitamin D3 when you specifically want a 500 mg magnesium glycinate serving that also names zinc, vitamin D3, and vitamin B6. Its Supplement Facts set the serving at two capsules, with 30 servings per container. That makes it the more formulation-focused choice here, particularly for shoppers who prefer zinc to be part of the active-ingredient combination. The limitation is container duration: it has 30 declared servings rather than the 60 servings stated for the 400mg option. Its storage directions call for keeping it in a cool, dry place and sealing it.
Magnesium Glycinate 400mg - Chelated High Absorption
Magnesium Glycinate 400mg - Chelated High Absorption is the better match for a routine centered on its stated 60 servings per container. The formula describes 400 mg of magnesium from magnesium glycinate in each two-capsule serving, alongside vitamin B6 and vitamin D described as from D3. This is the practical choice when a longer declared container format outweighs selecting the higher 500 mg magnesium amount. The trade-off is that its magnesium amount is lower than the 500mg formula, and zinc is not named in its active-ingredient list. Storage directions likewise call for a cool, dry place and sealing.
Final choice by use case
Select the 500mg With Zinc & Vitamin D3 formula for an ingredient-combination-led decision, especially when zinc is important to your preference. Select the 400mg Chelated formula when your priority is a longer declared serving format along with its named dietary-style attributes. With only a one-cent difference in listed price, neither option needs to win on price alone.

