Life Extension Super K, Vitamin K Supplement, 2000 Mcg Vitamin K…
USPTO names Life Extension Foundation, Inc. as the brand owner.
Rebuilt from public sources on July 22, 2026 · evidence availability is not a safety or effectiveness verdict.
What this means for you · The useful read
What the public record can establish
USPTO lists Life Extension Foundation, Inc. (['CORPORATION', 'CORPORATION']) in ['FLORIDA, USA', 'FLORIDA, USA'] for the exact brand wordmark. This identifies the USPTO mark owner or applicant; it does not by i…
Panel, decoded
The 1.18 mg vitamin k2 (as menaquinone-4) claim matches the panel
MARKETING1.18 mg — listing title
PANELVitamin K2 (as menaquinone-4) 1 mg — same amount
matches panel
We did the comparison: the listing claims 1.18 mg of vitamin k2 (as menaquinone-4), and the listing-image panel shows 1 mg vitamin k2 (as menaquinone-4) 1 softgel. Those amounts agree. This is internal consistency, not independent lab testing.
Panel row
Amount
%DV
What to notice
Vitamin C (as ascorbyl palmitate)
10 mg
—
Vitamin K (as phytonadione)
2000 mcg
—
Vitamin K2 (as menaquinone-4)
1000 mcg
—
Vitamin K2 (as MenaQ7® trans menaquinone-7)
180 mcg
—
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a declared “proprietary blend” (legal, but a transparency yellow flag). A label stating no amount at all is non-compliant — a checkable red flag. This panel states amounts; any remaining comparison concerns the front-label framing.
vision:google/gemini-flash-1.5 Amounts are shown as declared panel data, not independently lab-tested contents.
Public ownership record
🇺🇸
Life Extension Foundation, Inc.['Corporation', 'Corporation'] · exact mark owner for LIFE EXTENSION
3600 West Commercial Blvd., Ft. Lauderdale, FLORIDA 33309, UNITED STATES
Registered2010-05-18
AssignmentsYes
Filed address 3600 West Commercial Blvd., Ft. Lauderdale, FLORIDA 33309, 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 462 to 477 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
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.
These checks found support in the public record. They confirm specific facts, not the product as a whole.
✓
Exact trademark owner identified
USPTO lists Life Extension Foundation, Inc. (['CORPORATION', 'CORPORATION']) in ['FLORIDA, USA', 'FLORIDA, 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.
…
Multi-ingredient formula — panel read, serving weight unknown
We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. A gap in the label’s information, not evidence of a problem.
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 462 on 2026-01-26 to 477 on 2026-07-15 (net +15). 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
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.
2
Where are the ingredients sourced, and where is the product manufactured?
“Made in USA” can describe only the final bottling step. Ask which country the actives came from and whether the facility is audited.
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 737870233435.
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.