LookCloser.aipublic supplement evidence
Exact product checked · barcode not publishedEarth Harmony Naturals · checked Aug 31, 2026 · on sale since Nov 18, 2022🇺🇸 USPTO wordmark owner · Slante Holdings LLC · DELAWARE, USA
Quick read · Earth Harmony Naturals

Pure Magnesium Glycinate 500mg Chelated High Absorption…

Checked against public sources on August 31, 2026 · LookCloser does not sell or recommend supplements.

120capsules
120servings per container

Does the marketing hold up?

Testing claimed — documentation not found. The observed listing claims third-party testing without naming a lab or certifier. No product-bound report is saved, so the claim cannot be verified as stated. …

Is the dose real?Panel read — dose not verified1 ingredient listed; no advertised amount we could confirm against them
What a serving costsNo price found for this exact barcode
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇺🇸Slante Holdings LLClimited liability company · DELAWARE, USA
Is it the real thing?No barcode publishedso it can’t be matched against certification, recall or other retailer records
Trouble on record?No recalls found

“Couldn’t verify” means we looked and found no public proof — not a mark against the product. Most supplement claims cannot be independently verified by anyone, so grey is the normal state of this industry.

2◖ partly confirmed2? couldn’t verifyno contradictions · no recalls
The label itself

What the Supplement Facts panel says

Serving size 1 capsule · 120 servings per container

Magnesium Glycinate (supplies 50 mg of magnesium)500 mg

Printed on the package: Gluten Free · GMO Free · Gluten-Free · Vegan-Friendly · GMO-Free · Non-GMO · Vegan

We read 1 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.

Marketing claims, checked

The checks, one by one

The public sources did not settle the marketing promises on this label.

Partly confirmed2

“Soundly, Naturally - Mag glycinate (also known as magnesium bisglycinate) helps promote deeper, more restful sleep by calming and supporting your…”

Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.

Evidence →
“in the USA - We pride ourselves on the quality of our ingredients, our Magnesium Glycinate is made in an Earth-friendly, GMP certified facility to…”

“GMP-certified” describes factory processes, not what is in the bottle. The claim does not name a certifier or public register that a shopper can check.

Evidence →

Ingredient research can support context, but it is not a trial of this exact product.

?Couldn’t verify independently2

“Friendly - Our third party tested vegan formula is also free of gluten, soy, dairy, GMOs, nuts, sugar, artificial flavors, synthetic dyes, and toxic”

No named laboratory or lot-specific certificate was found for this exact product. A related brand page repeats a testing claim but names no issuer; its UPC is not published. NSF, IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur.

Evidence →
“in the USA - We pride ourselves on the quality of our ingredients, our Magnesium Glycinate is made in an Earth-friendly, GMP certified facility to…”

“Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product.

Evidence →

We looked and found no public proof. That does not count against the product.

Marketing language, not scored

Clean & Pure

Quick read · 1 useful finding

What is worth knowing.

Headlines first. Open evidence only when you want the source trail.

CheckedIs the label honest?

Every ingredient shows its amount · 1 ingredients listed.

Every ingredient shows its real amount — nothing is hidden in a proprietary blend.

Evidence and sources

The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.

Locked evidence record →Open the full source-linked finding
What remains open 2
  • No FDA recall matched this brand in the current search.
  • No dated review-history series is on file yet.

These are evidence gaps, not strikes against the product.

Who owns the brand wordmark?
🇺🇸
Slante Holdings LLCLimited Liability Company · exact supplement-class mark for EARTH HARMONY NATURALS
Registration6123651
Registered2020-08-11
AssignmentsNo transfers recorded

Filed address
Suite 100, 1242 North Post Oak Road, Houston, TEXAS 77055, UNITED STATES

USPTO identifies the public owner or applicant behind this brand wordmark. This does not by itself identify the product manufacturer or prove where the product was made. Open USPTO source ↗

Research behind the findings

Dose and research context

We could not match an amount on this product to a studied range for the same ingredient, so these links are ingredient background rather than a measurement of this product.

Background reading

What the research says about these amounts

Not a score. Studies disagree with each other and change over time, so this sits beside the evidence rather than counting toward it — it is here so you can read the sources yourself.

The panel lists 500 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits above that range.

0studied 200 mg–420 mg

Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.

Buying options

Where you can check or buy it

Open related seller leads before buying, then confirm the flavor, count, and serving size. Their prices are visible, but LookCloser does not claim savings until the pages share a UPC/GTIN.

Amazon

Submitted listing
$19.95

Lowest New observed via Keepa on 2026-09-02.

View on Amazon ↗

Brand website

Official product-page candidate · UPC absent
$24.95

Useful official shopping lead; excluded from exact price comparisons.

Magnesium Glycinate · Default Title. The page matches the same named product, but omits the identifier needed to bind the exact sellable unit.

Check brand website ↗

iHerb

Not confirmed
No price confirmed

No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.

Search iHerb ↗

Target

Not confirmed
No price confirmed

No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.

Search Target ↗

Walmart

Not confirmed
No price confirmed

No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.

Search Walmart ↗
Related brand page publishes 4.2/5 across 162 reviews

The related page's review pool may differ from the observed listing. Because the page does not publish a matching UPC/GTIN, LookCloser does not attribute that review aggregate to this exact sellable unit.

Prices and stock are point-in-time observations. Related pages are never used as product evidence. No affiliate links; LookCloser earns nothing from these sellers.

Want to inspect the evidence?

The full report shows every source, the exact unresolved question, and the documentation that would settle it.

Read / share full evidence →

Record built September 03, 2026. Sources: source listing observed at check time · USPTO Trademark Search · Keepa exact-listing history · NIH / published research · certification and regulator records where available. LookCloser publishes evidence and gaps; it does not advise for or against any supplement. Evidence-based corrections welcome.