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What checks out · Nutricost

Nutricost Potassium Citrate 99mg, 500 Capsules

Testing claim names a recognized certifier

Rebuilt from public sources on July 22, 2026 · evidence availability is not a safety or effectiveness verdict.

What this means for you · What checks out

What the record confirms

A named certifier/laboratory appears in the listing (registry cross-check pending).

Specific fact confirmed

Exact trademark owner identified

USPTO lists eSupplements, LLC (LIMITED LIABILITY COMPANY) in UTAH, USA for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this…

Panel, decoded

The 99 mg potassium (from potassium citrate) claim matches the panel

MARKETING99 mg — per-serving claim
PANELPotassium (from potassium citrate) 99 mg — same amount
matches panel

We did the comparison: the listing claims 99 mg of potassium (from potassium citrate), and the listing-image panel shows 99 mg potassium (from potassium citrate) 1 capsule. Those amounts agree. This is internal consistency, not independent lab testing.

Panel rowAmount%DVWhat to notice
Potassium (from potassium citrate)99mg

vision:google/gemini-flash-1.5 Amounts are shown as declared panel data, not independently lab-tested contents.

Public ownership record
🇺🇸
eSupplements, LLCLimited Liability Company · exact mark owner for NUTRICOST

UTAH, USA) DBA Nutricost; 351 E 1750 N, VINEYARD, UTAH 84059, UNITED STATES

Registered2017-11-14
AssignmentsNo transfers recorded

Filed address
UTAH, USA) DBA Nutricost; 351 E 1750 N, VINEYARD, UTAH 84059, UNITED STATES

This is the USPTO owner of the brand wordmark. It tells a shopper who is behind the brand, but does not by itself identify the manufacturer or prove where this product was made.

Review history
/ 5
not shownvisible ratings

Review counts rose gradually. Written-review counts rose from 798 to 841 across the observed period. That describes count movement, not review authenticity or product quality. A variation family may share some public counts.

Keepa exact-listing history · counts do not prove authenticity · variation family may share counts

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Open the full evidence trailSources, edge cases, and every unresolved check

Confirmed evidence

What checked out02

These checks found support in the public record. They confirm specific facts, not the product as a whole.

Testing claim names a recognized certifier

A named certifier/laboratory appears in the listing (registry cross-check pending).

Confirmed

Exact trademark owner identified

USPTO lists eSupplements, LLC (LIMITED LIABILITY COMPANY) in UTAH, USA for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product.

Confirmed

Documented concerns

What needs caution00

These are documented contradictions or claims that need more evidence. They are separate from missing data.

No contradictions or product-specific cautions were found at this check depth.

Unresolved public record

What is still missing05

We looked for these signals but could not settle them from public sources. A gap is not a strike.

Listing claim matches the label panel

The listing claims 99 mg; the photo-read Supplement Facts panel shows Potassium (from potassium citrate) at 99 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.

No data

No label filed with NIH's public catalog

The NIH Dietary Supplement Label Database has no matching label yet. Ingestion lags the market — recorded as a gap, not a strike.

No data

This item belongs to a catalog variation family

The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.

No data

180-day review-count history is on file

Exact-listing history records written-review counts from 798 on 2026-01-31 to 841 on 2026-07-19 (net +43). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.

No data

UPC valid, no independent record

Check digit passes; no third-party database record found yet. Coverage gaps are common — not a strike.

No data

What to ask and check

What would settle the open questions

Why is this shown?
Everything we couldn’t verify is something a person can still ask about. Rather than leave gaps sitting as dead ends, we turn each one into a specific question — the exact document, citation, or number that would settle it — plus the things you can confirm yourself with the bottle in your hand.

Ask the brand or seller

1

Can you send the certificate of analysis (COA) for the lot number on my bottle?

A real COA names the testing laboratory, the test date, the lot it covers, and what was measured. “Third-party tested” with no document behind it is a marketing sentence.

2

Is this label filed with NIH’s Dietary Supplement Label Database (DSLD)?

Filing is voluntary, so absence proves nothing — but a filed label puts the full ingredient table on public record where anyone can read it.

Most brands and sellers publish a contact route. A clear answer adds evidence to the record; no answer leaves the question open.

Check for yourself — no one’s permission needed

1

Compare the panel on the bottle in your hand to the one shown in this record.

Ours was read from listing photos and can contain reading errors. The physical label is the source of truth — if they disagree, tell us and we’ll correct the record.

2

Scan the barcode on the package and confirm it reads 810014679471.

A mismatch between the barcode on the box and the one on the listing is worth pausing over — it can indicate a different variant, a repack, or a counterfeit.

3

Check the lot number and expiry on the bottle against any COA you’re given.

A certificate that doesn’t name your lot doesn’t describe what you’re holding.

These are the open questions on this specific record — not a warning about the product, and not a suggestion to buy or avoid it. Getting them answered is how you decide for yourself.

Record built July 22, 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.