LookCloser.aipublic supplement evidence
Exact product checked · GTIN 00850059627167Fernes · checked Aug 4, 2026 · on sale since Jul 12, 2025🇺🇸 USPTO wordmark owner · Fernes Inc. · DELAWARE, USAPackage says manufactured for: Fernes Inc · 2980 NE 207th ST. Miami, FL 33180
Quick read · Fernes

Magnesium Glycinate with Zinc

Checked against public sources on August 4, 2026 · LookCloser does not sell or recommend supplements.

90capsules · 30 servings

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?✓Listing and panel agreeboth say 275 mg of Magnesium
What a serving costs$0.77per serving, at the checked price
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇺🇸Fernes Inc.corporation · DELAWARE, USA
Is it the real thing?✓Barcode matches outside 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 confirmed1? couldn’t verifyno contradictions · no recalls
The label itself

What the Supplement Facts panel says

Serving size Serving Size: 3 Capsules · 30 servings per container

Magnesium (as Chelamax® Magnesium Bisglycinate)275 mg
Magnesium Bisglycinate (Chelamax®)1250 mg
Zinc (as Chelamax® Zinc)8 mg

Printed on the package: GLUTEN FREE · GMO FREE · VEGAN · THIRD PARTY TESTED

We read 3 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

“Magnesium Glycinate with Zinc - 275mg Elemental Magnesium + 8mg Zinc for Active Adults, Athletes & Anyone Under Stress Who Need Better Sleep,…”

Ingredient evidence exists; on dose: label states 275 mg/serving — about 65% of the adult daily reference (adult RDA 310–420 mg elemental; NIH sets 350 mg/day as the supplemental upper level for elemental magnesium). A single serving isn’t meant to supply a full day, so this is context, not a shortfall. Caveat: chelate labels (glycinate, citrate) often state compound mass, which reads ~5–7× higher than elemental magnesium — the Supplement Facts panel settles which is meant.

Registry receipt: NIH ODS — Magnesium fact sheet ↗Registry receipt: NIH ODS — Zinc fact sheet ↗
Evidence →
“U.”

“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 independently1

“tested.”

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 →

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

Quick read · 4 useful findings

What is worth knowing.

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

Needs explanationAny trouble in public records?

Category context: sexual-enhancement products carry documented FDA risk

This is category history, not proof about this product, but it changes how much unsupported claims deserve to be trusted.

Evidence and sources

FDA's health-fraud program documents sexual-enhancement products as the most common supplement category found to contain undeclared prescription-drug ingredients. This is a category-level documented fact from FDA's public database — not a test result for this specific product. …

Locked evidence record →Open the full source-linked finding
CheckedIs the label honest?

Listing claim matches the Supplement Facts panel

The label promise and the Supplement Facts amount agree.

Evidence and sources

The listing claims 275 mg; the photo-read Supplement Facts panel shows Magnesium (as Chelamax® Magnesium Bisglycinate) at 275 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.

Locked evidence record →Open the full source-linked finding
CheckedIs the label honest?

Every ingredient shows its amount · 3 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
Public contextWill you get what you pay for?

Reaching a studied dose costs about $23/month

Comparing cost at a research-relevant amount shows how quickly the package is used and what the routine actually costs.

Evidence and sources

At 1.0 serving(s) a day to reach the low end of the studied range (200–420 mg), this product runs roughly $23 per month. A price observation, not a recommendation.

Locked evidence record →Open the full source-linked finding
What remains open 4
  • No FDA recall matched this brand in the current search.
  • We have not found a public label filing for this exact product.
  • Barcode checksum is valid; no independent product record was found.
  • No dated review-history series is on file yet.

These are evidence gaps, not strikes against the product.

Who owns the brand wordmark?
🇺🇸
Fernes Inc.Corporation · exact supplement-class mark for FERNES
Registration7871697
Registered2025-07-22
AssignmentsNo transfers recorded

Filed address
2035 NE 151st St, North Miami Beach, FLORIDA 33162, 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

The label amount is shown beside the range used in the linked ingredient studies.

Dose vs research

Magnesium

275 mg per serving — within the 200–420 mg/day used in the linked studies.

Linked ingredient research · label amount, not a recommendation
NIH ODS — Magnesium fact sheet ↗PubMed search: magnesium glycinate supplementation ↗NIH ODS — Zinc fact sheet ↗PubMed search: zinc supplementation trial ↗
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 275 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits inside 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.

NIH ODS — Magnesium fact sheet ↗PubMed search: magnesium glycinate supplementation ↗

The panel lists 8 mg of zinc per serving. Studies we found used 8 mg–40 mg a day, so this sits inside that range.

0studied 8 mg–40 mg

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

NIH ODS — Zinc fact sheet ↗PubMed search: zinc supplementation trial ↗
Where it sells

Price check for this exact product

Amazon

Exact UPC/GTIN match
$22.95

$0.77 per labeled serving

matching UPC/GTIN · checked Aug 4, 2026

View on Amazon ↗

iHerb

Not confirmed
No exact listing saved

We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.

Search iHerb ↗

Target

Not confirmed
No exact listing saved

We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.

Search Target ↗

Walmart

Not confirmed
No exact listing saved

We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.

Search Walmart ↗

Only one exact price was available at build time; prices change by date, seller, and promotion.

Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.

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 August 04, 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.