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Xtendlife Multi‑Xtra Daily Multivitamin Supplement

2 concrete dimensions confirmed · 4 still open · built July 27, 2026

Exact product image from the source listing
Exact product checkedGTIN not published · checked 2026-07-27

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How to read this report

What this is. We compare what a listing claims against what public records show — label arithmetic, barcode registries, NIH’s label catalog, FDA enforcement data, certification registries, and published research. Every statement below traces to one of those.

What the states mean. Confirmed = an outside source agrees. Contradicted = an outside source disagrees. Caution = something needs explaining. No data = we looked and found nothing — a gap, not a strike.

What it is not. A clean record is not an endorsement and never proof a product works. A thin record is not an accusation. We publish evidence and gaps; the conclusion is yours. Nothing here is medical advice.

Something wrong? Every figure is meant to be checkable — sources are named and linked. Send a correction and we’ll fix the record.

Panel, decoded

What the label discloses

25listed rows
25separately quantified
0combined blend totals

The listing-image panel publishes an amount for each of its 25 listed rows. That supports ingredient-by-ingredient review; it does not verify the contents.

Panel rowAmount%DVWhat to notice
Calories5
Total Carbohydrate1 g
Magnesium (as Magnesium Hydroxide (from Sea Water), Calcium Magnesium Inositol Hexaphosphate)65 mg
Zinc (as Zinc Citrate)10 mg
Selenium (as L-Selenomethionine)100 mcg
Copper (as Copper Gluconate)0.1 mg
Manganese (as Manganese Citrate)2.2 mg
Chromium (as Chromium Picolinate)100 mcg
Molybdenum (as Molybdenum Glycinate)64 mcg
Vitamin A (from Natural Beta Carotene)1720 mcg
Vitamin C (as Calcium Ascorbate, Potassium Ascorbate, Ascorbyl Palmitate)155 mg
Vitamin D3 (as Cholecalciferol)25 mcg(1000 IU)
Vitamin E (from D-Alpha Tocopheryl Succinate)15 mg
Vitamin K (as Menaquinone-4)180 mcg
Thiamin (as Thiamin HCI)12 mg
Riboflavin (as Riboflavin-5-Phosphate)10 mg
Niacin (as Nicotinic Acid & Niacinamide)26 mg
Vitamin B6 (as Pyridoxal-5-Phosphate)8 mg
Folate (as Calcium 5MTHF)500 DFE (300 mcg Folic Acid)
Vitamin B12 (as Cobamamide)24 mcg
Biotin300 mcg
Pantothenic Acid (as Calcium Pantothenate)41 mg
Choline (as Choline Bitartrate and Phosphatidyl Choline)40 mg
Calcium (from Red Algae (Lithothamnium species), Calcium Ascorbate, Calcium Magnesium Inositol Hexaphosphate, Dicalcium Phosphate, Calcium Pantothenate, Calcium L-5-methyltetrahydrofolate)60 mg
Iodine (as Potassium Iodide)150 mcg

vision:google/gemini-2.5-flash Amounts are shown as listed panel data, not independently lab-tested contents.

Every check we ran

Confirmed evidence

What checked out0

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

Nothing could be independently confirmed from the available record.

Documented concerns

What needs caution0

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 missing6

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

Multiple USPTO brand-owner records are shown

USPTO returned multiple live supplement-class records for the exact brand wordmark: XTEND-LIFE HOLDINGS LIMITED, XTEND-LIFE GROUP LIMITED. These records answer who owns registrations for the brand; the separate product-to-owner or manufacturer link remains open.

No data

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

Research context is available for the listed ingredients

Published sources describe how magnesium, zinc have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.

No data

No recall found — which is not the same as being tested

This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.

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 22 on 2025-09-05 to 23 on 2026-07-01 (net +1). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.

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

What is the product’s UPC or GTIN?

The barcode is how a product gets matched to outside records — certification registries, label databases, recall data. Without it, almost nothing can be cross-checked.

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

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.

What the listing promises — claim by claim

Why is this shown?
A listing’s promises are the reason people buy. Each one gets its own row: what was promised, what evidence would settle it, and what we could actually find. We never call a claim false — only whether proof proportionate to it exists on the public record.
ClaimStatusWhat we found
Manufacturing claim
“…GMP CERTIFIED…”
Partly supported
We looked for: the facility registration or certificate behind the claim
“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.
Benefit claim
“…COMPLETE DAILY NUTRITION WITH 40+ ESSENTIAL NUTRIENTS: Provides a comprehensive blend of over 40 vitamins, minerals, and antioxidants to support overall health, energy, ”
Partly supported
We looked for: whether the ingredient doses on the label match the doses used in published research
Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.

“No evidence located” does not mean a claim is false — it means the seller has not put evidence proportionate to the claim on the public record, and we could not find any. Absence of proof is not proof of absence.

This label vs. the doses studied

Why is this shown?
An ingredient can be well-studied at one amount and barely studied at the amount in your bottle. This lines the label up against the doses researchers actually used. It answers ‘are these the same numbers?’ — never ‘should you take this?’
IngredientWhere this label sitsReading
Magnesium (as Magnesium Hydroxide (from Sea
shaded = doses used in studies (200 mg–420 mg) · bar = this label
65 mg — below the studied range
Zinc (as Zinc Citrate)
shaded = doses used in studies (8 mg–40 mg) · bar = this label
10 mg — within the studied range

Matching a studied dose does not mean the product works, and missing it does not mean it fails — it shows whether the label and the research are talking about the same amounts. Not a recommendation to take any amount.

Documented cautions

Statements from published sources about these ingredients — not advice about this product, and not a complete safety review. Anyone taking medication should talk to a pharmacist or clinician.

Verifiability profile — 2 of 6 public signals

✓ Supplement Facts visible in photos✓ Brand's own store found· Per-serving dose established — not published· UPC / GTIN published — not published· Found in NIH's label catalog (DSLD) — not published· Third-party lab named or registry-certified — not published

What this listing gives the public to check. Publishing these signals doesn't prove quality — but withholding them means claims can only be taken on faith.

Identity

LookCloser record IDlc-3e9262e7 (internal — no barcode published, which limits cross-checking)
BrandXtendlife
Source listing identifierB00BAI98D6
Retailer listing titleXtendlife Multi‑Xtra Daily Multivitamin Supplement, 30 Day Supply…
show full title Xtendlife Multi‑Xtra Daily Multivitamin Supplement, 30 Day Supply
USPTO brand-owner recordXTEND-LIFE HOLDINGS LIMITED · NEW ZEALAND · registration 4910619 · 12 Mary Muller Drive,, Hillsborough, NEW ZEALAND
USPTO brand-owner recordXTEND-LIFE GROUP LIMITED · NEW ZEALAND · registration not stated · Unit 2, 21 Leslie Hills Drive,, Riccarton Christchurch 8011, NEW ZEALAND

From the label (photo-read)

Serving size2 Capsules
Servings per container30
Pack statement60 VEGETARIAN CAPSULES
Badges printed on packQUALITY GUARANTEE, QUALITY GUARANTEE BEST, UL, CERTIFIED MANAGEMENT SYSTEM 21 CFR PART , NATURAL PRODUCTS ASSOCIATION, GMP CERTIFIED, SYSTEM CERTIFICATION ISO 9001, SGS

Supplement Facts panel (photo-read):

IngredientAmount per servingReading confidence
Calories5 High
clearly legible in the photo
Total Carbohydrate1 gHigh
clearly legible in the photo
Magnesium (as Magnesium Hydroxide (from Sea Water), Calcium 65 mgHigh
clearly legible in the photo
Zinc (as Zinc Citrate)10 mgHigh
clearly legible in the photo
Selenium (as L-Selenomethionine)100 mcgHigh
clearly legible in the photo
Copper (as Copper Gluconate)0.1 mgHigh
clearly legible in the photo
Manganese (as Manganese Citrate)2.2 mgHigh
clearly legible in the photo
Chromium (as Chromium Picolinate)100 mcgHigh
clearly legible in the photo
Molybdenum (as Molybdenum Glycinate)64 mcgHigh
clearly legible in the photo
Vitamin A (from Natural Beta Carotene)1720 mcgHigh
clearly legible in the photo
Vitamin C (as Calcium Ascorbate, Potassium Ascorbate, Ascorb155 mgHigh
clearly legible in the photo
Vitamin D3 (as Cholecalciferol)25 mcg(1000 IU) High
clearly legible in the photo
Vitamin E (from D-Alpha Tocopheryl Succinate)15 mgHigh
clearly legible in the photo
Vitamin K (as Menaquinone-4)180 mcgHigh
clearly legible in the photo
Thiamin (as Thiamin HCI)12 mgHigh
clearly legible in the photo
Riboflavin (as Riboflavin-5-Phosphate)10 mgHigh
clearly legible in the photo
Niacin (as Nicotinic Acid & Niacinamide)26 mgHigh
clearly legible in the photo
Vitamin B6 (as Pyridoxal-5-Phosphate)8 mgHigh
clearly legible in the photo
Folate (as Calcium 5MTHF)500 DFE (300 mcg Folic Acid) High
clearly legible in the photo
Vitamin B12 (as Cobamamide)24 mcgHigh
clearly legible in the photo
Biotin300 mcgHigh
clearly legible in the photo
Pantothenic Acid (as Calcium Pantothenate)41 mgHigh
clearly legible in the photo
Choline (as Choline Bitartrate and Phosphatidyl Choline)40 mgHigh
clearly legible in the photo
Calcium (from Red Algae (Lithothamnium species), Calcium Asc60 mgHigh
clearly legible in the photo
Iodine (as Potassium Iodide)150 mcgHigh
clearly legible in the photo

Claims printed on the packaging:

“Family Wellness” · “Advanced Formula Specialty Nutrients” · “Daily Nutritional Support” · “daily all-in-one formula to enhance wellness and overall health.” · “Combining the power of 40+ high potency vitamins, minerals & antioxidants to support immunity, boost energy, and fufill ” · “Natural Bio-Available Ingredients” · “DIETARY SUPPLEMENT” · “Formulated with the finest ingredients available, including Vitamin B group, C, D3, E, K2, Calcium, Magnesium, Zinc, Zea”

Read by a vision model from 6 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.

Where it sells

We found a brand storefront, but we could not match any price on it to this exact product when we checked.

Brand store xtendlife.com: 68 supplement products — for comparison, single-focus brands typically carry 5–30 products; very broad catalogs are common among companies that rebrand ready-made formulas — a pattern note, not a verdict.

Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.

Ingredient science — NIH references

MagnesiumNIH ODS · MedlinePlus · PubMed (11,814) · UL 350 mg (SUPPLEMENTAL magnesium only (not from food))

ZincNIH ODS · MedlinePlus · PubMed (19,708) · UL 40 mg (adults, from all sources)

SeleniumNIH ODS · MedlinePlus · PubMed (12,481) · UL 400 mcg (adults)

CopperNIH ODS · MedlinePlus · PubMed (9,405) · UL 10 mg (adults)

ManganeseNIH ODS · MedlinePlus · PubMed (3,608) · UL 11 mg (adults)

MolybdenumNIH ODS · MedlinePlus · PubMed (809) · UL 2000 mcg (adults)

Vitamin ANIH ODS · MedlinePlus · PubMed (10,699) · UL 3000 mcg (preformed vitamin A (retinol); excludes beta-carotene)

Vitamin CNIH ODS · MedlinePlus · PubMed (11,019) · UL 2000 mg (total intake, adults)

Vitamin DNIH ODS · MedlinePlus · PubMed (26,500) · UL 100 mcg (adults; 100 mcg = 4,000 IU)

Vitamin ENIH ODS · MedlinePlus · PubMed (12,326) · UL 1000 mg (supplemental alpha-tocopherol, adults)

Vitamin KNIH ODS · MedlinePlus · PubMed (2,124) · no UL established; interacts with warfarin

ThiaminNIH ODS · MedlinePlus · PubMed (1,262) · no UL established

RiboflavinNIH ODS · MedlinePlus · PubMed (3,172) · no UL established

NiacinNIH ODS · MedlinePlus · PubMed (2,689) · UL 35 mg (supplemental/added niacin, adults)

Vitamin B6NIH ODS · MedlinePlus · PubMed (2,372) · UL 100 mg (adults; chronic high intake linked to neuropathy)

FolateNIH ODS · MedlinePlus · PubMed (10,628) · UL 1000 mcg (synthetic folic acid from supplements/fortified food)

Vitamin B12NIH ODS · MedlinePlus · PubMed (5,006) · no UL established

BiotinNIH ODS · MedlinePlus · PubMed (1,606) · no UL; high doses interfere with lab tests

Pantothenic AcidNIH ODS · MedlinePlus · PubMed (601) · no UL established

CholineNIH ODS · MedlinePlus · PubMed (7,299) · UL 3500 mg (adults)

IodineNIH ODS · MedlinePlus · PubMed (6,462) · UL 1100 mcg (adults)

Reference data from the NIH Office of Dietary Supplements, IOM Dietary Reference Intakes, and PubMed. A Tolerable Upper Intake Level is a documented reference figure, not a safety verdict — both the listed amount and the reference are shown for your own judgment. LookCloser gives no medical advice.

Related research & consistency

magnesiumNIH ODS — Magnesium fact sheet · PubMed search: magnesium glycinate supplementation · WebMD: magnesium · ClinicalTrials.gov — 3,206 registered studies

Use pattern in research: daily oral use; chelated forms (glycinate) are studied for absorption — note labels may state compound mass rather than elemental magnesium, which differs ~7-fold.

zincNIH ODS — Zinc fact sheet · PubMed search: zinc supplementation trial · ClinicalTrials.gov — 1,598 registered studies

Use pattern in research: daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice.

These notes state where label numbers and marketing framing sit relative to published research — documentation for your own judgment, not medical advice. LookCloser does not advise for or against taking any supplement.

Record lc-3e9262e7 · built July 27, 2026 · lookcloser.ai · corrections@lookcloser.ai