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Layer 1 · Decision
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BulkSupplements

Magnesium Glycinate Powder

Mineral · Powder (capsule variants also sold) · 45 servings

Label snapshot

What the label says

What the product contains and what one serving costs, according to our catalog. Label amounts are not personal dose recommendations.

Mineral per serving
Magnesium 310 mg Elemental vs compound: check label
Form
Powder
List price (catalog, USD)
$19.97
Price per serving
$0.44List price divided by servings per container. A per-day cost only if the label serving is once daily.

Reading notes

  • Whether the figure is elemental mineral or compound weight is not stored. Read the label.
Full label record: servings, testing, ingredients
Servings per container
45
Catalog monthly estimate
$13.31
Testing disclosure
No third-party testing listedStatus as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Ingredients as listed

IngredientAmount per serving
Magnesium310 mg

What to check on the label

  • Whether the label says 'elemental magnesium' or gives the compound weight (for example '2,000 mg magnesium L-threonate').
  • The salt form named. Different salts contain very different shares of elemental mineral.
  • Capsules per serving. Several products use two or three.

Amounts are per label serving as recorded in the catalog and are not a recommendation. Testing status reflects what the brand lists. Nothing here is medical advice.

Editorial score and research-dose calculations

These calculations describe our scoring method. They are not a recommended dose or proof of benefit from this product.

8.2/10
Overall score
#2 / 5 in Mineral

Full trial dose, top 25% value.

Read the evidence (3 studies)
Add to compareVisit brand site →
Watch out
Tier 3
Ingredient RCT (matching dose)
The ingredient was tested in an RCT at the same dose this product sells.
See the 3 supporting studies
How we scored this product Show the full breakdown
Dose vs. studies (50%) Why 10.0 of 10. Primary ingredient is Magnesium (evidence grade A). It delivers 310 mg, inside the studied range of 200–500 mg. Read the rule → 10.0
Transparency (20%) Why 6.0 of 10. Earned points for all doses disclosed. Lost points for no public certificate of analysis and no independent third-party testing. Read the rule → 6.0
Value (10%) Why 9.5 of 10. One day at the trial dose costs about $0.43. That is one of the cheaper options in the catalog (56 of 313 by cost per effective day). Read the rule → 9.5
Formulation (10%) Why 5.0 of 10. No published absorption advantage or disadvantage on file. The default of 5 is not a criticism. Read the rule → 5.0 Default. No absorption data on file.
Safety (5%) Why 5.0 of 10. Baseline 5.0. Third-party testing adds 2.0. Public lab certificate adds 1.5. NSF, USP or Informed Choice certification adds 1.5. Active safety signal subtracts 3.0. Read the rule → 5.0
Community sentiment (5%) Why 6.8 of 10. No external reviews found, so community sentiment defaults to neutral. Community never counts as clinical evidence. Read the rule → 6.8
Composite How this 8.2 is built. 0.50 × 10.0 + 0.20 × 6.0 + 0.10 × 9.5 + 0.10 × 5.0 + 0.05 × 5.0 + 0.05 × 6.8 = 8.2 out of 10. Safety caps applied after. 8.2
8.2 composite
Dose vs. studies50%10.0
Transparency20%6.0
Value10%9.5
Formulation10%5.0
Safety5%5.0
Community5%6.8

Evidence gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Safety caps applied after weighting.

This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.

Read the full method →

Editorial verdict

Quick verdict

8.2 / 10
Best for
Full trial dose, Budget-friendly
Avoid if
No public lab certificate
Full-dose status
Meets trial dose
Price/month
$13
COA status
Not public
Biggest caveat
No third-party testing and no public lab certificate, which caps the quality transparency at 6.0.
Nearest alternatives
Catalog snapshot. Check linked sources for current price, label and batch-specific testing.
Price verification
Current price: $19.97
Last price check: Sep 01, 2026
Add to compareVisit brand site →
Layer 2 · Context
In plain language

Why this scored this way

Cheap and cheerful magnesium glycinate that costs almost nothing per day, but the score reflects a real transparency problem: no third-party testing and no public lab certificate. The 2200mg listed dose is compound (glycinate salt) weight, not elemental magnesium, so the actual magnesium content is much lower than the label suggests.

What drives the score up

  • At $0.06/day it is one of the cheapest supplements on the entire site.
  • Magnesium glycinate is a well-absorbed chelate form, and magnesium itself is evidence grade A.
  • Community reviews are positive (score of 8.0, though based on a small sample).

What drags it down

  • No third-party testing and no public lab certificate, which caps the quality transparency at 6.0.
  • The 2200mg figure is compound weight, not elemental magnesium. Actual elemental Mg is likely around 300mg, which is still a good dose, but the label is misleading.
  • Bulk Supplements is a budget brand without the quality documentation of premium competitors.

Why you'd choose it

  • You want the absolute cheapest way to supplement magnesium.
  • You want glycinate form for sleep and muscle cramp support.

Why you might skip it

  • You want third-party verified purity and a public lab certificate.
  • You need to know the exact elemental magnesium content (the compound weight label makes this unclear).
Question 1

Does the molecule work?

The science behind each active ingredient, independent of which brand sells it.

Magnesium

One of the most common deficiencies; corrects sleep, muscle cramps, and blood pressure.

5 landmark RCTs · US: Dietary supplement · EU: Food supplement, health claims authorised
Question 2

Is this bottle good?

The specific product: dose, price, transparency, and what buyers report.

Dose vs research
100% of trial dose
Meets or exceeds the published effective dose
Cost at trial dose
$0.43/day at trial dose
What one effective daily dose actually costs
Transparency
6.0/10 · No public lab certificate
No third-party testing disclosed
Consumer signals
No consumer signals collected yet
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

Safety flags, transparency gaps, dosing concerns, and recurring buyer complaints.

Safety signals
Drug interaction risk — magnesium
Can reduce absorption/efficacy of oral bisphosphonates, tetracyclines, and quinolone antibiotics.
Read more
No public lab certificate
Certificate of Analysis not published
Without a public lab certificate, batch purity and potency cannot be independently verified.
No third-party testing
Independent lab verification not disclosed
The brand does not publish evidence of independent batch testing.
Plain English

What’s inside

The main ingredients of this product, in plain language.

Magnesium310 mgEvidence A

One of the most common deficiencies; corrects sleep, muscle cramps, and blood pressure.

Read about Magnesium →
Layer 3 · Evidence vault

Product data & verification

Hard numbers and independently checked status. Expand each block for its source.

The numbers

Price
$20
per bottle · 45 servings
Dose vs. research
of trial dose 100%
of published effective dose
$ / day at studied dose
$0.43
what one effective daily dose costs
$ / g active
$1.43
per gram of active substance
Independently checked

Data verification

COA status
Not public
Evidence grade
A
Per-ingredient breakdown
AMagnesium

All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Evidence grades are reviewed when new human RCTs are published. Read how we verify.

What's inside

Ingredient
Dose in this product
Trial dose
Evidence
310 mg 103% of trial dose
300 mg
3.4 /5
High confidence
716 reviews across 4 platforms (4 sources)
Source diversity: 92%
BulkSupplements product pageRedditTrustpilotYouTube
PraiseBulkSupplements' own magnesium glycinate powder page lists a 4.6 out of 5 ratingA YouTube reviewer covering BulkSupplements Magnesium Glycinate concludes it's a
Last checked: 2026-08-20

Consumer signals

Consumer signals gathered from 4 platforms.

Medium confidence

Consumer sentiment compiled from 3 public sources (BulkSupplements product page, Reddit, YouTube).

BulkSupplements product page

4.6/5 · positive sentiment

Praise

BulkSupplements' own magnesium glycinate powder page lists a 4.6 out of 5 rating from 1,922 reviews. This is a brand-hosted rating rather...

Compiled from a BulkSupplements product page listing located during manual research; not independently re-verified against the live page at build time.

YouTube

1 thread discussed · positive sentiment

Praise

A YouTube reviewer covering BulkSupplements Magnesium Glycinate concludes it's a really great option overall for anyone shopping for a ma...

Compiled from a YouTube reviewer listing located during manual research; not independently re-verified against the live page at build time.

Reddit

1 thread discussed · mixed sentiment

Themes

A Reddit thread titled Buyers beware about magnesium glycinate raises concerns about product quality in this category broadly, without na...

Compiled from a Reddit r/Supplements listing located during manual research; not independently re-verified against the live page at build time.

Trustpilot

716 reviews · 3.3/5

These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.

What others say (unverified)

We aggregated external reviews. We didn't check their methodology. None of them are paid placements from us, but we can't guarantee the sources themselves received no product.

BulkSupplements product page · 4.6
positive

BulkSupplements' own magnesium glycinate powder page lists a 4.6 out of 5 rating from 1,922 reviews. This is a brand-hosted rating rather than an independent one.

Read source → Unverified · we received no payment for this listing
YouTube reviewer
positive

A YouTube reviewer covering BulkSupplements Magnesium Glycinate concludes it's a really great option overall for anyone shopping for a magnesium glycinate powder.

Read source → Unverified · we received no payment for this listing
Reddit r/Supplements
mixed

A Reddit thread titled Buyers beware about magnesium glycinate raises concerns about product quality in this category broadly, without naming BulkSupplements specifically. A separate thread asking what the catch is with BulkSupplements suggests some buyers are skeptical of the brand's low prices relative to competitors.

Read source → Unverified · we received no payment for this listing
Layer 3 · Evidence vault

Evidence, claims & regulation

Published evidence, claim checks, regulatory status and what could not be verified.

Evidence

Research behind this product

The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.

MagnesiumMagnesium + CVD meta-analysis 2019 (544,581)
MagnesiumMagnesium + vascular function 2020 meta-analysis
MagnesiumMagnesium + cognitive health 2024 (Adv Nutr)
MagnesiumMagtein RCT 2026 (N=100)
MagnesiumMagnesium + T2D meta-analysis 2007 (286,668)
Important to know
MagnesiumMagnesium oxide has ~4% absorption and mostly acts as a laxative. Always check the salt form, not just 'magnesium'.

Editorial notes

Chelated magnesium glycinate powder. Label states 2200 mg magnesium glycinate per serving, which is compound weight. Elemental magnesium is roughly 14 percent of that molecule, so this delivers about 310 mg elemental magnesium per serving. Score is calculated on elemental content.

Go deeper

Where this sits

Actives inside
Magnesium
Category
See all in Mineral →
Ranking
See top 10 Magnesium supplements →
Brand
BulkSupplements profile →
Add to compare Visit brand site →
Brand owners

Spot an error?

If you are the manufacturer or brand owner of Magnesium Glycinate Powder and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.

We review every request, verify it against primary sources, and publish any accepted change with a dated note. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

Request a correction →
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