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MagnesiumCapsulesManufacturer claim onlyDemo

Northfield Labs Magnesium Glycinate 200 mg

by Northfield Labs · 200 mg elemental magnesium per serving · 60 servings

Summary

A single-form magnesium bisglycinate capsule providing 200 mg elemental magnesium per two-capsule serving, with a short list of other ingredients.

Price per serving (demo)
$0.42
$0.21 per 100 mg elemental magnesium
CompareCheck current price

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Supplement Facts

Supplement Facts

Serving size: 2 capsules
Servings per container: 60
Amount per servingAmount% DV
Magnesium (as magnesium bisglycinate chelate)200 mg48%

† Daily Value not established.

Other ingredients: Hypromellose (vegetable capsule), Rice flour, Silicon dioxide.

From product label Transcribed from the product label (fictional demonstration label). Last updated September 28, 2026.

Label details

Brand
Northfield LabsFictional demonstration brand
Primary ingredient
Magnesium
Ingredient form
Magnesium Glycinate
Format
Capsules
Serving size
2 capsules
Servings per container
60
Amount per serving
200 mg elemental magnesium
Vegan
YesManufacturer stated
Gluten-free
YesManufacturer stated
Non-GMO
Not statedNot verified
Manufacturer
Northfield Labs (fictional)Location: Not verified

Certifications & testing

No certification verifiedSuppScout hasn’t confirmed this product in any certifier’s public listing.
Manufacturer claims
  • “Third-party tested” (unspecified) — A general marketing phrase. Without the name of the testing organization and what was tested, SuppScout cannot verify it and always labels it as a manufacturer claim. Claim
  • “Third-party tested for purity and potency” — testing organization not named Claim

A manufacturer claim is what the brand says. A certification is shown as verified only after SuppScout confirms the product in the certifier’s public listing. What “third-party tested” means.

Factual indicators

SuppScout indicators

Ingredient transparency
From product label
All active amounts disclosed
Testing information
Manufacturer claim
Manufacturer claim only
Price per serving
SuppScout calculation
$0.42Based on demonstration price
Label completeness
SuppScout calculation
7 of 7 fields
Independently verified certifications
Third-party certification
None verified
Number of ingredients
From product label
1 active · 3 other

SuppScout does not assign a single health score. These are factual indicators drawn from the label and our calculations; they don't tell you whether a supplement is appropriate for you.

What stands out on the label

Pros

  • Single magnesium form listed — no oxide blend
  • Elemental amount clearly stated
  • Short other-ingredients list

Considerations

  • Two capsules per serving
  • Testing claim does not name a lab or certification
  • Higher cost per 100 mg than buffered or oxide products

Label-based observations, not a judgment of whether the product is right for you.

Who might consider researching this product

  • People comparing unbuffered glycinate products
  • People who want a vegetable capsule

Compare against similar products

Two “magnesium glycinate” bottles — why is one so much cheaper per 100 mg?Northfield Labs Magnesium Glycinate 200 mg vs Harbor & Pine Magnesium Glycinate (Buffered) 240 mg
Primary ingredient
Magnesium Citrate
Per serving
150 mg elemental magnesium
Servings
60
Format
Capsules
Price
$14.99*
Per serving cost
$0.25
Not verified
Primary ingredient
Magnesium Oxide
Per serving
250 mg elemental magnesium
Servings
100
Format
Tablets
Price
$8.99*
Per serving cost
$0.09
Not verified
Primary ingredient
Magnesium L-Threonate
Per serving
144 mg elemental magnesium
Servings
30
Format
Capsules
Price
$44.99*
Per serving cost
$1.50
Manufacturer claim only

Understand the ingredient form

MAGNESIUM

Glycinate vs Citrate

Forms, label differences and what to compare before choosing.

Compare →
MAGNESIUM

Glycinate vs Oxide

Elemental content, solubility and cost per 100 mg.

Compare →

References

  1. Magnesium: Fact Sheet for Health Professionals. NIH Office of Dietary Supplements. ods.od.nih.govGovernment
  2. Magnesium: Fact Sheet for Consumers. NIH Office of Dietary Supplements. ods.od.nih.govGovernment
  3. Mah J, Pitre T (2021). Oral magnesium supplementation for insomnia in older adults: a Systematic Review & Meta-Analysis. BMC Complementary Medicine and Therapies 21:125. pubmed.ncbi.nlm.nih.govMeta-analysis

SuppScout links to primary and authoritative sources wherever possible. See our editorial policy for how sources are selected and how corrections are handled.

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This page is educational and is not medical advice. Talk to a healthcare professional before starting a supplement, especially if you have a medical condition, take medications, or are pregnant or breastfeeding.