Magnesium Glycinate
Capsules and powders are ranked separately: each has its own pick and its own table, and neither is priced against the other.
Capsules, softgels and tablets
Our pick, delivery included · Cheapest independently tested, delivery known
Nature Made High Absorption Magnesium Glycinate 200 mg (60 capsules)$1.00per 200mg, delivered$29.99 a month
Cheapest per 200mg, delivery known
Thorne Magnesium Glycinate (180 capsules)$0.426per 200mg, delivered$12.78 a month
Not our pick: no independent verification we could locate.
Cheapest independently tested, before delivery
Core Med Science Magnesium Bisglycinate (60 capsules)$0.40per 200mg, before delivery$11.99 a month
Not our pick: delivery cost is not published.
Delivery is extra and not published; free from $75.00.
How these lines are chosen
Among 19 products and 19 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
Why this pick, and what's cheaper
Not a score, no weightings to argue with. It is the cheapest per delivered dose among products clearing four factual bars (a certification we confirmed applies to this package, naming it where the certifier names packages; no recall, warning letter or failed test in the sources we checked; a price its retailer let us read within its cache limit; no more than a year's supply at the label's serving) and whose delivery cost we actually know. It is provisional: it is the best answer within the products, retailers and sources we have actually checked, and that universe is still narrow.
Powder
Our pick, delivery included · Cheapest per 200mg, delivery known · Cheapest independently tested, delivery known
Thorne Magnesium Bisglycinate (60 servings)$0.867per 200mg, delivered$26.00 a month
Cheapest independently tested, before delivery
BulkSupplements.com Magnesium Glycinate Powder (1 kg)$0.05per 200mg, before delivery$1.49 a month
Not our pick: delivery cost is not published, and more than a year's supply at one labeled serving a day (455 servings).
Delivery is extra and not published; free from $59.00.
How these lines are chosen
Among 8 products and 8 retailer listings we track; Amazon and Walmart are not included. A month is thirty doses of the size in the heading, priced the same way as the per-dose figure beside it. “Delivery known” ranks only products whose retailer publishes a delivery rate; a cheaper product with an unpublished rate is on its own line, or in the full list below.
BulkSupplements.com Magnesium Glycinate Powder (1 kg): its panel names Magnesium Glycinate and Magnesium Oxide, so its price is for a blend, not for magnesium glycinate alone.
Why this pick
Not a score, no weightings to argue with. It is the cheapest per delivered dose among products clearing four factual bars (a certification we confirmed applies to this package, naming it where the certifier names packages; no recall, warning letter or failed test in the sources we checked; a price its retailer let us read within its cache limit; no more than a year's supply at the label's serving) and whose delivery cost we actually know. It is provisional: it is the best answer within the products, retailers and sources we have actually checked, and that universe is still narrow.
The number on the front of a magnesium bottle is usually the weight of the compound, not the magnesium in it, and some products sold as glycinate name magnesium oxide on the panel as well. Priced on what the panel states.
Prices checked daily. Every figure links to its source. Where the data comes from
Of the 27 products here: 6 named at the exact package by a certifier, 4 at another size only, 17 in no database we searched.
Capsules, softgels and tablets
19 of 19 products
11 rows marked + delivery exclude an unpublished delivery charge, so their real cost per dose is higher.
Tested? A Certified · B Tested · C Claimed · D None located · A? listed, but not at this size
MI
BULK
NUTR
MI
MI
DWS
NUTR
CMS
SR
THOR
DWS
THOR
SR
SR
MOME
SR
NM
MEGA
| Product | Delivery | |||||
|---|---|---|---|---|---|---|
MI Micro Ingredients Magnesium Glycinate 400 mg (240 capsules) capsule · 400mg per serving · 1.50 per dose Second active this price does not pay for: vitamin C 204 mg | $0.125 $3.75/mo + delivery | D · None located Could not locate independent data | $19.99 checked today | not free $39.01 short | 80 = 160 doses 5.3 months at 1/day | Buy Micro Ingredients (direct) |
BULK BulkSupplements.com Magnesium Glycinate Capsules (240 count) capsule · 400mg per serving · 2.00 per dose | $0.166 $4.99/mo + delivery | A? · Listed, not at this package Independently certified package unconfirmed | $19.97 checked today | not free $39.03 short | 60 = 120 doses 3.9 months at 1/day | Buy BulkSupplements.com |
NUTR | $0.198 $5.95/mo + delivery | D · None located Could not locate independent data | $24.97 checked today | not free $34.03 short | 120 = 126 doses 4.1 months at 1/day | Buy Nutricost (direct) |
MI Micro Ingredients Magnesium Glycinate 500 mg (120 capsules) capsule · 500mg per serving · 1.20 per dose | $0.20 $6.00/mo + delivery | D · None located Could not locate independent data | $19.99 checked today | not free $39.01 short | 40 = 100 doses 3.3 months at 1/day | Buy Micro Ingredients (direct) |
MI Micro Ingredients Magnesium Glycinate 1,000 mg (150 capsules) capsule · 180mg per serving · 2.22 per dose Second active this price does not pay for: vitamin C 40 mg | $0.296 $8.88/mo + delivery | D · None located Could not locate independent data | $19.99 checked today | not free $39.01 short | 75 = 68 doses 68 days at 1/day | Buy Micro Ingredients (direct) |
DWS Double Wood Supplements Magnesium Glycinate (180 capsules) capsule · 60mg per serving · 3.33 per dose | $0.369 $11.08/mo + delivery | C · Claimed Claimed, not confirmed | $19.95 checked today | not free $10.05 short | 180 = 54 doses 54 days at 1/day | Buy Double Wood Supplements (direct) |
NUTR | $0.38 $11.40/mo + delivery | D · None located Could not locate independent data | $11.97 checked today | not free $47.03 short | 30 = 32 doses 32 days at 1/day | Buy Nutricost (direct) |
CMS | $0.40 $11.99/mo + delivery | A · NSF Certified for Sport Independently certified | $17.99 checked today | not free $57.01 short | 60 = 45 doses 45 days at 1/day | Buy Core Med Science (direct) |
SR Sports Research Magnesium Glycinate (180 veggie capsules) capsule · 160mg per serving · 2.50 per dose | $0.416 $12.48/mo | D · None located Could not locate independent data | $29.95 checked 3 days ago | $7.50 | 90 = 72 doses 72 days at 1/day | Buy Sports Research (direct) |
THOR | $0.426 $12.78/mo | D · None located Could not locate independent data | $46.00 checked today | free | 180 = 108 doses 3.5 months at 1/day | Buy Thorne (direct) |
DWS Double Wood Supplements Magnesium Glycinate Extra Strength (90 capsules) capsule · 120mg per serving · 1.67 per dose | $0.462 $13.86/mo + delivery | D · None located Could not locate independent data | $24.95 checked today | not free $5.05 short | 90 = 54 doses 54 days at 1/day | Buy Double Wood Supplements (direct) |
THOR | $0.481 $14.44/mo | D · None located Could not locate independent data | $26.00 checked today | free | 90 = 54 doses 54 days at 1/day | Buy Thorne (direct) |
SR | $0.499 $14.96/mo | D · None located Could not locate independent data | $17.95 checked 3 days ago | $7.50 | 45 = 36 doses 36 days at 1/day | Buy Sports Research (direct) |
SR Sports Research Magnesium Glycinate, Biolipid Delivery (120 softgels) softgel · 160mg per serving · 2.50 per dose | $0.52 $15.59/mo | D · None located Could not locate independent data | $24.95 checked 3 days ago | $7.50 | 60 = 48 doses 48 days at 1/day | Buy Sports Research (direct) |
MOME | $0.566 $16.99/mo + delivery | A · NSF Certified for Sport Independently certified | $16.99 checked today | not free | 30 30 days at 1/day | Buy Momentous (direct) |
SR Sports Research Magnesium Glycinate, Biolipid Delivery (60 softgels) softgel · 160mg per serving · 2.50 per dose | $0.706 $21.19/mo | D · None located Could not locate independent data | $16.95 checked 3 days ago | $7.50 | 30 = 24 doses 24 days at 1/day | Buy Sports Research (direct) |
NM Nature Made High Absorption Magnesium Glycinate 200 mg (60 capsules) · our pick capsule · 200mg per serving · 2.00 per dose | $0.733 $21.99/mo | A · USP Verified Independently certified | $21.99 checked today | $8.00 | 30 30 days at 1/day | Buy Nature Made (direct) |
MEGA | $1.39 $41.65/mo + delivery | D · None located Could not locate independent data | $24.99 checked today | not free $25.01 short | 60 = 18 doses 18 days at 1/day | Buy MegaFood (direct) |
| Unknown | D · None located Could not locate independent data | Unknown | Unknown | 60 |
Powder
8 of 8 products
6 rows marked + delivery exclude an unpublished delivery charge, so their real cost per dose is higher.
Tested? A Certified · B Tested · C Claimed · D None located · A? listed, but not at this size
BULK
BULK
BULK
NUTR
EN
BULK
THOR
THOR
| Product | Delivery | |||||
|---|---|---|---|---|---|---|
BULK BulkSupplements.com Magnesium Glycinate Powder (1 kg) powder · 1000 g · 300mg per serving · 0.67 per dose | $0.05 $1.49/mo + delivery | A · NSF Certified for Sport Independently certified | $33.97 checked today | not free $25.03 short | 455 = 683 doses 22 months at 1/day | Buy BulkSupplements.com |
BULK BulkSupplements.com Magnesium Glycinate Powder (500 g) powder · 500 g · 300mg per serving · 0.67 per dose | $0.076 $2.29/mo + delivery | A? · Listed, not at this package Independently certified package unconfirmed | $25.97 checked today | not free $33.03 short | 227 = 341 doses 11 months at 1/day | Buy BulkSupplements.com |
BULK BulkSupplements.com Magnesium Glycinate Powder (250 g) powder · 250 g · 300mg per serving · 0.67 per dose | $0.128 $3.85/mo + delivery | A? · Listed, not at this package Independently certified package unconfirmed | $21.97 checked today | not free $37.03 short | 114 = 171 doses 5.6 months at 1/day | Buy BulkSupplements.com |
NUTR Nutricost Magnesium Glycinate Powder, Unflavored (250 g) powder · 250 g · 210mg per serving · 0.95 per dose | $0.155 $4.65/mo + delivery | D · None located Could not locate independent data | $21.97 checked today | not free $37.03 short | 135 = 142 doses 4.7 months at 1/day | Buy Nutricost (direct) |
EN EVLution Nutrition Magnesium Glycinate Powder, Unflavored (75 servings) powder · 135 g · 200mg per serving | $0.227 $6.80/mo + delivery | D · None located Could not locate independent data | $16.99 checked today | not free $62.01 short | 75 75 days at 1/day | Buy EVLution Nutrition (direct) |
BULK BulkSupplements.com Magnesium Glycinate Powder (100 g) powder · 100 g · 300mg per serving · 0.67 per dose | $0.296 $8.88/mo + delivery | A? · Listed, not at this package Independently certified package unconfirmed | $19.97 checked today | not free $39.03 short | 45 = 68 doses 68 days at 1/day | Buy BulkSupplements.com |
THOR | $0.867 $26.00/mo | A · NSF Certified for Sport Independently certified | $52.00 checked today | free | 60 60 days at 1/day | Buy Thorne (direct) |
THOR | $1.57 $47.00/mo | A · NSF Certified for Sport Independently certified | $47.00 checked today | free | 30 30 days at 1/day | Buy Thorne (direct) |
Common questions
How much does magnesium cost per dose?
What 200 mg of elemental magnesium costs across every magnesium we price, cheapest to most expensive, with the salt each panel names. Before delivery.
What is the cheapest magnesium per dose?
Every magnesium we track, priced per 200 mg of elemental magnesium, not per capsule or bottle, grouped by salt. The salt and the brand both move the price.
Magnesium glycinate vs citrate: what is the difference?
What each form costs per 200 mg of elemental magnesium, how many capsules that takes, and what the Supplement Facts panels say. Absorption is not compared.
Is magnesium glycinate actually all glycinate?
Some products sold as one magnesium salt name a second salt on their own Supplement Facts panel. What each panel we have read says, by product.
Is magnesium glycinate third party tested?
Which magnesium glycinate and bisglycinate products a certifier names at the exact package sold, which only at another size, and which not at all.
Which magnesium brands are third-party tested?
Every magnesium we track, grouped by whether a certifier names the exact package sold, only another size, or nothing we found. By salt.
Magnesium glycinate vs malate: what is the difference?
What each form costs per 200 mg of elemental magnesium, how many capsules that takes, and what the Supplement Facts panels name. Absorption is not compared.
Why is magnesium L-threonate so much more expensive?
L-threonate costs many times more per 200 mg of elemental magnesium than glycinate. Little of the compound is magnesium, and that is most of the gap.
Magnesium citrate vs oxide: what is the difference?
What oxide and citrate each cost per 200 mg of elemental magnesium, how many units a dose takes, and what each panel names.
Do third-party tested supplements cost more?
The cheapest product we track in each category beside the cheapest one a certifier names at the exact package, where one exists, and the gap per dose.
Magnesium glycinate vs taurate: what is the difference?
Magnesium glycinate and taurate priced per 200 mg of elemental magnesium, with the capsules each takes and what the labels name. Absorption is not compared.
How many capsules of magnesium do you have to take?
How many capsules, softgels or scoops each magnesium product needs to reach 200 mg of elemental magnesium. The number varies widely across products.
Is BulkSupplements third party tested?
Every BulkSupplements product we track, by whether a certifier names the exact package sold, only another size, or nothing we found. With listing IDs.
Do supplement travel packs cost more per dose?
Every travel pack or single-serve packet we price, next to the same brand’s smallest tub or bottle of the same product, per comparison dose.
Is Thorne magnesium NSF certified?
Thorne magnesium bisglycinate, glycinate capsules and citrate checked against NSF Certified for Sport: which package each listing names, with the listing IDs.
What is the cheapest NSF certified magnesium?
Every magnesium we track whose exact package NSF names in its Certified for Sport database, ranked by cost per 200 mg of elemental magnesium, by salt.
Is Thorne third party tested?
Every Thorne product we price, checked in NSF’s Certified for Sport database: which listing names the exact package sold, with the listing IDs.
Is Core Med Science third party tested?
Every Core Med Science product we price, checked in NSF’s Certified for Sport database: which listing names the exact package sold, and the IDs.
Is Optimum Nutrition third party tested?
Every Optimum Nutrition product we track, checked in the certifier databases: what each listing covers, package by package, with the listing IDs.
Is Momentous third party tested?
Every Momentous product we price, checked in NSF’s Certified for Sport database: where a listing names the exact package, and where it names another size.
Is BulkSupplements magnesium NSF certified?
Every BulkSupplements magnesium we price, checked in NSF’s Certified for Sport database: which bags a listing names, which it does not, and the listing IDs.
Is Momentous magnesium NSF certified?
Momentous magnesium bisglycinate, L-threonate and malate checked against NSF Certified for Sport: which bottle each listing names, with the listing IDs.
Is BPN third party tested?
Every Bare Performance Nutrition product we price, checked in NSF’s Certified for Sport database: which package each listing names, and which it does not.
How much elemental magnesium is in magnesium glycinate?
What the milligrams on a magnesium label mean: the compound weight a bottle names, the elemental magnesium its panel states, and how the two differ by form.
Which supplements are NSF Certified for Sport?
Every package we price that NSF names in its Certified for Sport database, by category, with the listing IDs and what each listing actually covers.
Do supplement prices actually change?
We re-read every price we can read automatically each day and keep every reading. Which prices have moved since we started, which have not, and by how much.
How many capsules is one serving?
How many pills the label calls one serving, across every capsule, tablet and softgel we price, and what that does to the count on the front of the bottle.
What is the cheapest magnesium glycinate?
Every magnesium glycinate package we price, ranked by what 200 mg of elemental magnesium costs, with the ones whose panel names another salt kept apart.
Is BUBS Naturals third party tested?
Every BUBS Naturals product we price, checked in NSF’s Certified for Sport database: which listing names the exact package sold, with the listing IDs.
Is Sports Research third party tested?
Every Sports Research product we track, checked in the certifier databases: which program lists each one, and which no database we searched lists.
Is Nature Made third party tested?
Every Nature Made product we price, checked against USP’s Verified Products directory and its own label: which packages carry both, product by product.
Is Nature Made magnesium USP Verified?
Nature Made magnesium glycinate, citrate and oxide checked against USP’s Verified directory and each label’s mark, package by package.
About these numbers
What “per dose” means here: 200mg elemental magnesium
The NIH fact sheet gives an adult RDA of 310-420 mg of magnesium, so 200 mg is a little under half of that. It is a round number chosen as a common denominator across salts that carry very different amounts of magnesium per gram. It is a unit of comparison, not a recommended intake.
Labels often print the weight of the whole magnesium-glycinate compound, of which only a fraction is magnesium. We compare on elemental magnesium, which is the figure the Supplement Facts panel is required to give.
Source: NIH Office of Dietary Supplements, Magnesium - Health Professional Fact Sheet · checked Aug 25, 2026
Where the data comes from
Every claim links to its source. Products, prices and certification listings are read from the retailers' own stores and the certifiers' own databases, and each figure links to the record it came from, so you can check any of them.
- Where a label does not state servings per container, the figure is derived from net weight and the product page says so.
- Amazon and Walmart are not included, so “cheapest” means cheapest among the retailers we track.
- Prices go stale. Each one shows when it was last checked, and says so when it is older than the retailer allows us to cache it.
- iHerb prices cannot be refreshed automatically. iHerb has not given us access to its price data, so those prices are marked stale until they are re-read. Each retailer offer carries its own check date.
Found something wrong? Tell us. Corrections are the point.
How we make money
No Buy button on this page earns us anything. The only links on the site that can are the Amazon links shown below the price comparison on some product pages, outside the comparison, and each says so beside it.
Commission will play no part in what we list, how it ranks, or which link we send you to. The Buy button points at the lowest price we have recorded even when that retailer pays us nothing.