LookCloser.aipublic supplement evidence
Exact product checked · barcode not publishedNATURE'S BRANCH · checked Jul 26, 2026 · on sale since Feb 15, 2020🇬🇧 USPTO wordmark owner · Richard Purser · UNITED KINGDOM
Quick read · NATURE'S BRANCH

Magnesium Glycinate 400mg

Checked against public sources on July 26, 2026 · LookCloser does not sell or recommend supplements.

Does the marketing hold up?

The observed listing says it is tested, but names no lab or certifier. A testing badge without an issuer or report is a marketing claim, not evidence. Ask for the lab name and lot-specific report.

Is the dose real?Can’t check — no panel filed
What a serving costsNo price found for this exact barcode
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇬🇧Richard Purserindividual · UNITED KINGDOM
Is it the real thing?No barcode publishedso it can’t be matched against certification, recall or other retailer records
Trouble on record?Recall check not run yeta gap in our records, not a finding about the product

“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? couldn’t verifyno contradictions · no recalls
Marketing claims, checked

The checks, one by one

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

?Couldn’t verify independently2

“for the best magnesium experience. Third party tested for quality, potency and purity. Our vegan”

No named laboratory or lot-specific certificate was found for this exact product. No exact brand product page was available for a document check. 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 order to concentrate on digestion.* MADE IN THE USA – NON GMO & VEGAN: Nature’s Branch”

“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.

Quick read · 0 useful findings

What is worth knowing.

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

What remains open 1
  • No dated review-history series is on file yet.

These are evidence gaps, not strikes against the product.

Who owns the brand wordmark?
🇬🇧
Richard PurserIndividual · exact supplement-class mark for NATURE'S BRANCH
Registration5423327
Registered2018-03-13
AssignmentsNo transfers recorded
Show the exact filed address in the full report
UNITED KINGDOM) DBA Nature's Branch; 200 South Andrews Ave., Suite 504, Fort Lauderdale, Florida 33301, 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.

Buying options

Where you can check or buy it

Only the submitted seller page is identity-certain. Other destinations are shown as leads until a shared UPC/GTIN confirms the exact product.

Amazon

Submitted listing
$19.95

Lowest New observed via Keepa on 2026-07-26.

View on Amazon ↗

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.

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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.

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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 ↗

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 July 26, 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.