Magnesium · per 100 mg elemental
Thorne vs Micro Ingredients magnesium
Micro Ingredients costs 71% less per 100 mg elemental than Thorne: $0.06 vs $0.21. At one serving a day that is $21.90 a year instead of $76.65, $54.75 less.
Popular brand
Thorne
Magnesium Glycinate · 180 Capsules
- Per serving
- $0.21 per 100 mg elemental
- A year, one serving a day
- $76.65
- Container
- $46.00 at Vitacost
No. 1 cheapest on our list71% less
Micro Ingredients
Pure Magnesium Glycinate 400mg Per Serving · 240 Capsules
- Per serving
- $0.06 per 100 mg elemental
- A year, one serving a day
- $21.90
- Container
- $19.99 at Micro Ingredients
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Side by side
| Detail | Thorne | Micro Ingredients |
|---|---|---|
| Price per 100 mg elemental | $0.21 | $0.06 |
| A year, one serving a day | $76.65 | $21.90 |
| Container price | $46.00 at Vitacost | $19.99 at Micro Ingredients |
| In the container | 21,600mg elemental magnesium | 32,000mg elemental magnesium |
| Servings of 100 mg elemental | 216 | 320 |
| Serving on the label | 120 mg elemental | 400 mg elemental |
| Form | Capsules | Capsules |
| Third-party testing | NSF Contents Certified (opens in a new tab) | Not listed |
| Price checked | Every day | Every day |
Tested means the product is in the testing program's own database (NSF, USP, Informed Sport or Choice, IFOS). Not listed means we didn't find it there, not that it failed a test.
The verdict
Micro Ingredients costs 71% less per 100 mg elemental than Thorne: $0.06 vs $0.21. At one serving a day that is $21.90 a year instead of $76.65, $54.75 less.
Thorne is listed by NSF Contents Certified. We didn't find Micro Ingredients in a testing program's database. If that listing matters to you, it is part of what the difference pays for.
The labels use different servings (Thorne: 120 mg elemental, Micro Ingredients: 400 mg elemental), so both are priced on the same 100 mg elemental.
We compare price on the same dose. Taste, mixing, other ingredients and how a product suits you are yours to judge, so read both labels before you switch.
The cheapest magnesium today
Best value. Lowest price per serving on this list.
Micro Ingredients Pure Magnesium Glycinate 400mg Per Serving · 240 CapsulesChecked less than an hour ago
$0.06 per 100 mg elemental71% less than Thorne per 100 mg elemental
BuySave me money at Micro Ingredients (opens in a new tab)- NOW Foods Magnesium Bisglycinate Powder · 8 oz
Checked less than an hour ago
$0.06 per 100 mg elemental71% less than Thorne per 100 mg elemental
BuySave me money at Vitacost (opens in a new tab) Sale · 25% off. Piping Rock is running a sale on this size.
Piping Rock Magnesium Glycinate · 375 mg · 130 Quick Release SoftgelsChecked less than an hour ago
$0.07 per 100 mg elemental67% less than Thorne per 100 mg elemental
BuySave me money at Piping Rock (opens in a new tab)
Cheaper alternatives to Thorne magnesiumSee the full magnesium list
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Questions
Is Micro Ingredients cheaper than Thorne?
Micro Ingredients costs 71% less per 100 mg elemental than Thorne: $0.06 vs $0.21. Both prices are checked every day, and this page changes when they do.
Are Thorne and Micro Ingredients the same magnesium?
Both are on our glycinate list: Thorne as capsules, Micro Ingredients as capsules. We compare the labeled amount of the active ingredient, priced per 100 mg elemental, not taste, other ingredients or quality. Prices shown per 100 mg elemental magnesium, not the glycinate compound. Oxide and blends stay off this list.
Is Thorne or Micro Ingredients third-party tested?
Thorne is listed by NSF Contents Certified. We didn't find Micro Ingredients in a testing program's database. If that listing matters to you, it is part of what the difference pays for.
How is the price per 100 mg elemental worked out?
We divide the container price by how many 100 mg elemental servings the label's amount makes. Thorne: $46.00 ÷ 216 servings of 100 mg elemental. Micro Ingredients: $19.99 ÷ 320 servings of 100 mg elemental. Store prices can change at checkout.
More magnesium head-to-heads
- Pure Encapsulations vs Micro Ingredients magnesiumMicro Ingredients costs 73% less per 100 mg elemental than Pure Encapsulations: $0.06 vs $0.22.
- Nature Made vs Micro Ingredients magnesiumMicro Ingredients costs 84% less per 100 mg elemental than Nature Made: $0.06 vs $0.37.
Magnesium buying guides
- Best magnesium glycinate 2026: top 5 per 100 mg elementalThe best-value magnesium glycinate right now, ranked by cost per 100 mg of elemental magnesium, plus the best powder and softgel and the label traps to avoid.
- Magnesium glycinate vs citrate: which one for sleep, stress or constipation?Glycinate is gentle on the gut; citrate absorbs well but loosens stools. How they compare on elemental magnesium, side effects, uses and price per 100 mg.
- Magnesium glycinate: elemental dose, label tricks, and how much for sleep1,000 mg of magnesium glycinate gives about 140 mg of elemental magnesium (14%). How to find the elemental dose on a label and spot oxide blends.
We show prices. We don't sell the products or tell you what to take. How we compare · Disclaimer