LookCloser.aipublic supplement evidence
Exact product checked · barcode not publishedZena Nutrition · checked Jul 26, 2026🇺🇸 USPTO wordmark owner · VitaMina Labs, LLC · NEVADA, USA
Quick read · Zena Nutrition

Zena Nutrition Liquid Collagen for Women

Checked against public sources on July 26, 2026 · LookCloser does not sell or recommend supplements.

Does the marketing hold up?

Every ingredient shows its amount · 8 ingredients listed. Every ingredient shows its real amount — nothing is hidden in a proprietary blend.

Is the dose real?Panel read — dose not verified8 ingredients listed; no advertised amount we could confirm against them
What a serving costsNo price found for this exact barcode
Is it tested?No testing claim made
Who’s behind it?🇺🇸VitaMina Labs, LLClimited liability company · NEVADA, 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.

1◖ partly confirmedno contradictions · no recalls
The label itself

What the Supplement Facts panel says

Serving size 2 tsp (10 mL) · 30 servings per container · 32 FL OZ (1 QT) 946 mL

Calories10
Total Carbohydrate0 g
Total Sugars0 g
Protein2 g
Biotin5000 mcg
Calcium3 mg
Sodium15 mg
Verisol Bioactive Collagen Peptides2500 mg

We read 8 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 confirmed1

“Collagen Peptides for Women with Biotin: Our liquid collagen plus biotin combines Verisol liquid collagen with biotin and collagen supplements…”

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.

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 · 8 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?
🇺🇸
VitaMina Labs, LLCLimited Liability Company · exact supplement-class mark for ZENA NUTRITION
Registration6338944
Registered2021-05-04
AssignmentsYes

Filed address
411 E. Bonneville Ave., Suite 400, Las Vegas, Nevada 89101, 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 2.5 g of collagen peptides per serving. Studies we found used 2.5 g–15 g a day, so this sits inside that range.

0studied 2.5 g–15 g

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
$19.99

Lowest New observed via Keepa on 2026-07-26.

View on Amazon ↗

Brand website

Official product-page candidate · UPC absent
$56.00

Useful official shopping lead; excluded from exact price comparisons.

Zena Liquid Collagen + Biotin · 60 Servings. The page matches 5000 mcg, but omits the identifier needed to bind the exact sellable unit.

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.

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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 ↗
Related brand page publishes 4.7/5 across 241 reviews

The related page's review pool may differ from the observed listing. Because the page does not publish a matching UPC/GTIN, LookCloser does not attribute that review aggregate to this exact sellable unit.

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 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 July 26, 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.