Harbor & Pine Magnesium Citrate 150 mg
Harbor & Pine · Demo
- Primary ingredient
- Magnesium Citrate
- Per serving
- 150 mg elemental magnesium
- Servings
- 60
- Format
- Capsules
- Price
- $14.99*
- Per serving cost
- $0.25
Not verified
MagnesiumCapsulesNot verifiedDemo
Harbor & Pine Magnesium Glycinate (Buffered) 240 mg
by Harbor & Pine · 240 mg elemental magnesium per serving · 90 servings
Summary
A “buffered” glycinate: the label lists both magnesium bisglycinate and magnesium oxide but does not say how much magnesium comes from each. That blend is the main reason it costs less per 100 mg than single-form glycinate.
Price per serving (demo)
$0.22
$0.09 per 100 mg elemental magnesium
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Supplement Facts
Supplement Facts
Serving size: 2 capsules
Servings per container: 90
Servings per container: 90
| Amount per serving | Amount | % DV |
|---|---|---|
| Magnesium (as magnesium bisglycinate chelate, magnesium oxide) | 240 mg | 57% |
† Daily Value not established.
Other ingredients: Gelatin (capsule), Magnesium stearate.
From product label Transcribed from the product label (fictional demonstration label). Last updated September 28, 2026.
Label details
- Brand
- Harbor & PineFictional demonstration brand
- Primary ingredient
- Magnesium
- Ingredient form
- Magnesium Glycinate, Magnesium OxideBlend — amount from each form not disclosed
- Format
- Capsules
- Serving size
- 2 capsules
- Servings per container
- 90
- Amount per serving
- 240 mg elemental magnesium
- Vegan
- NoManufacturer stated
- Gluten-free
- Not statedNot verified
- Non-GMO
- Not statedNot verified
- Manufacturer
- Harbor & Pine (fictional)Location: Not verified
Certifications & testing
No certification verifiedSuppScout hasn’t confirmed this product in any certifier’s public listing.
No testing claims stated by the manufacturer.
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 - Not verified
- Price per serving
SuppScout calculation - $0.22Based 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 · 2 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
- Lower cost per 100 mg elemental magnesium
- More elemental magnesium per capsule
Considerations
- Blend of glycinate and oxide; split between forms not disclosed
- Gelatin capsule (not vegetarian)
- No testing information provided
Label-based observations, not a judgment of whether the product is right for you.
Who might consider researching this product
- Budget-focused shoppers comparing cost per 100 mg
- People who want to understand what “buffered” means on a label
Compare against similar products
Harbor & Pine Magnesium Oxide 250 mg
Harbor & Pine · Demo
- Primary ingredient
- Magnesium Oxide
- Per serving
- 250 mg elemental magnesium
- Servings
- 100
- Format
- Tablets
- Price
- $8.99*
- Per serving cost
- $0.09
Not verified
Northfield Labs Magnesium Glycinate 200 mg
Northfield Labs · Demo
- Primary ingredient
- Magnesium Glycinate
- Per serving
- 200 mg elemental magnesium
- Servings
- 60
- Format
- Capsules
- Price
- $24.99*
- Per serving cost
- $0.42
Manufacturer claim only
Northfield Labs Magnesium L-Threonate
Northfield Labs · Demo
- 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
References
- Magnesium: Fact Sheet for Health Professionals. NIH Office of Dietary Supplements. ods.od.nih.govGovernment
- Magnesium: Fact Sheet for Consumers. NIH Office of Dietary Supplements. ods.od.nih.govGovernment
- 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.
SuppScout may earn a commission when you purchase through certain links. This does not affect how products are compared. Learn more.
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.