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Magnesium Oxide
mineral · 16 active deals
Low absorptionHow much does Magnesium Oxide cost?
The best-value Magnesium Oxide right now is about $0.03 per dose — across the 16 we can price per dose the median is $0.079/dose, so shopping on cost-per-dose can cut your cost several-fold. Every Magnesium Oxide deal here is ranked by cost per dose — what you actually pay per serving, not the sticker price — because forms and absorption differ, so the cheapest bottle isn’t always the cheapest dose.
Prices checked · live from the Amazon US catalog.
Right now the best value across our full Magnesium Oxide catalog is at $0.03 per serving.
Median $0.079/servingCheapest quartile under $0.046across 16 tracked Magnesium Oxide deals
Recommended daily intake
Sports Research® Magnesium Oxide 420mg w/Coconut MCT Oil
Sports ResearchAmazon.com
$0.19/serving
$16.950°
Carlyle Magnesium Oxide 500mg | 120 Capsules | Premium Quality…
CarlyleAmazon.com
$0.08/serving
$9.990°
Magnesium Oxide 400mg, 500 Capsules | Elemental Form for Max…
Micro IngredientsAmazon.com
$0.03/serving
$15.190°
Magnesium Oxide 400mg, 400 Capsules | High Purity Elemental…
NatureBellAmazon.com
$0.04/serving
$14.950°
![Magnesium 400mg [High Potency] Supplement – Magnesium Oxide…](/_next/image?url=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F41A9%2BSJ9rLL._SL500_.jpg&w=3840&q=75)
Magnesium 400mg [High Potency] Supplement – Magnesium Oxide…
P Puregen LabsAmazon.com
$0.07/serving
$8.950°
Every Magnesium Oxide deal above is ranked by real cost per dose with no paid placement — see our and .
Independent testing
2 of 11 tracked Magnesium Oxide brands here are flagged as carrying independent third-party testing — a voluntary check of a product's identity, potency and contaminants by an outside lab. It's a quality signal, not a value or efficacy claim. Confirm any brand's current status on the official registries:
Testing status is self-reported by the brand or drawn from public certification and may change — always verify on the official registry before purchase.
Magnesium Oxide deals — FAQ
- How much does Magnesium Oxide cost?
The cheapest magnesium oxide we track works out to $0.03 , against a typical $0.08 across the 16 we can price per dose — about $0.91 a month at the cheapest. That is real from live Amazon US prices, not the sticker price. The full ranking is on the Best Magnesium Oxide page.
- What is the best-value Magnesium Oxide per dose?
Magnesium Oxide 400mg, 500 | Form for Max Concentration… at $0.03 — the lowest cost-per-dose magnesium oxide in our catalog. See the full ranking on the Best Magnesium Oxide page.
- How many Magnesium Oxide deals are live right now?
We're tracking 16 active Magnesium Oxide deals across Amazon US and partner retailers, ranked by community votes and cost-per-dose — not paid placement.
- What's a good price for Magnesium Oxide per dose?
Across the 16 Magnesium Oxide deals we can price per dose (combination products are left out — their single label dose belongs to whichever ingredient the product is built around) the median cost-per-dose is $0.079; the cheapest quartile comes in under $0.046 . Anything below the median is a solid deal for the same molecule.
- How much Magnesium Oxide per day?
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References & sources
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.