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Exact product checked · barcode not publishedNatural Flow Supplements · checked Aug 1, 2026 · on sale since Aug 4, 2022🇺🇸 USPTO wordmark owner · Natural Flow Supplements LLC · PENNSYLVANIA, USA
Quick read · Natural Flow Supplements

Natural Flow Zinc 3X Complex, 15 mg, 120 Capsules

Checked against public sources on August 1, 2026 · LookCloser does not sell or recommend supplements.

120capsules
120servings per container

Does the marketing hold up?

Every ingredient shows its amount · 3 ingredients listed. Every ingredient shows its real amount — nothing is hidden in a proprietary blend.

Is the dose real?Listing and panel agreeboth say 1 mg of Copper
What a serving costsNo price found for this exact barcode
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇺🇸Natural Flow Supplements LLClimited liability company · PENNSYLVANIA, 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✓ checked out1◖ 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

Vitamin C (Ascorbic Acid)90 mg
Zinc (Orotate + Bisglycinate + Carnosine)15 mg
Copper (Copper Bisglycinate Chelate)1 mg

Printed on the package: USA · cGMP · 3RD-PARTY TESTED · cGMP FACILITY

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

2 promises check out. 3 could not be fully confirmed from public sources.

Matches the label2

“Copper 1 mg per serving”

The label promises 1 mg per serving. The panel says 1 mg. They match.

Evidence →
“Vitamin C 90 mg per serving”

The label promises 90 mg per serving. The panel says 90 mg. They match.

Evidence →

Partly confirmed1

“they support immune function, skin health, and balanced mineral status the way your body actually uses”

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

Evidence →

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

?Couldn’t verify independently2

“IN USA · cGMP FACILITY · GENTLE ON THE STOMACH: Every batch of Zinc 3X is made in a cGMP-certified facility in the USA, using only chelated forms…”

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

Evidence →
“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.

Marketing language, not scored

Three Premium Chelated Forms

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 · 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
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?
🇺🇸
Natural Flow Supplements LLCLimited Liability Company · exact supplement-class mark for NATURAL FLOW SUPPLEMENTS
Registration6631948
Registered2022-02-01
AssignmentsNo transfers recorded

Filed address
18 WILLOWCREEK AVE, JONESTOWN, PENNSYLVANIA 17038, 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 15 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.

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
$24.95

Lowest New observed via Keepa on 2026-08-01.

View on Amazon ↗

Brand website

Official storefront
No price confirmed

Open the brand storefront to search manually.

No defensible same-product page was saved from the brand catalog.

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 ↗

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 the complete evidence trail?

The summary stops at product-specific facts. The full report preserves every source, calculation, limitation, and unresolved check for review or sharing.

Read / share full evidence →

Record built August 02, 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.