“Clinically tested” or “science-backed”
Evidence →No named, citable study of this product or formula was located in public sources. The claim may rest on ingredient-level research rather than a trial of this product.
Exact product checked · GTIN 840160202599OLLY · observed 2026-07-24🇺🇸 USPTO wordmark owner · OLLY PBC · DELAWARE, USA
Quick read · OLLY
Olly Probiotic + Prebiotic
Marketing check: 1 marketing claim needs attention.
Rebuilt from public sources on July 24, 2026 · evidence availability is not a safety or effectiveness verdict.
50gummies
Marketing claims, checked
Does the marketing hold up?
Couldn’t verify means public proof was not found; it is not a mark against the product. Ingredient research is not treated as a trial of this exact product.
△Claimed without support found1
Quick read · 2 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Checks outWho is behind it?
The barcode identity checks out · 840160202599.
The outside identifier points to this product, so the other checks are less likely to be about a look-alike.
Evidence and sources
The brand's store lists this exact barcode as “Probiotic + Prebiotic” (variant: 60 Servings) — identity confirmed across retailer listings.
Locked evidence record →Open the full source-linked findingChecks outCan you trust the review pattern?
Written reviews moved 287 → 322 from 2026-01-25 to 2026-07-21 without one large burst.
Gradual growth is more ordinary; a sudden burst deserves a closer look. Neither pattern proves whether individual reviews are genuine.
Evidence and sources
Written reviews grew from 287 to 322 across 2026-01-25 – 2026-07-21 with no single manufactured spike (largest 30-day gain ~9).
Locked evidence record →Open the full source-linked findingWhat remains open 1
- No identity-bound public label filing is retained in this record.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
🇺🇸
OLLY PBCCorporation · exact supplement-class mark for OLLY
Filed address
86 Graham Street, Suite 200, San Francisco, California 94129, 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
Ingredient context only because no identity-bound Supplement Facts panel is captured. These sources do not test this product or establish safety or effectiveness.
Where it sells
Price check for this exact product
Amazon
Exact UPC/GTIN match$23.44
matching UPC/GTIN · observed 2026-07-24T08:18:53.947496+00:00
View on Amazon ↗Brand website
Exact UPC/GTIN match$23.99
matching UPC/GTIN · observed 2026-07-24
View on Brand website ↗iHerb
Not confirmedNo exact listing retained
Search results remain unbound until this retailer publishes the matching UPC/GTIN.
Search iHerb ↗Target
Not confirmedNo exact listing retained
Search results remain unbound until this retailer publishes the matching UPC/GTIN.
Search Target ↗Walmart
Not confirmedNo exact listing retained
Search results remain unbound until this retailer publishes the matching UPC/GTIN.
Search Walmart ↗Same UPC/GTIN observed across 2 sellers. Amazon was lowest at $23.44; Brand website was highest at $23.99 — a $0.55 range at check time.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
Want to inspect the evidence?
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Open the full evidence trailSources, edge cases, and every unresolved check
Confirmed evidence
What checked out04
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Found on the brand's own store
The brand's store lists this exact barcode as “Probiotic + Prebiotic” (variant: 60 Servings) — identity confirmed across retailer listings.
Exact trademark owner identified
USPTO lists OLLY PBC (CORPORATION) in DELAWARE, 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.
Barcode confirmed in an outside database
Open Food Facts resolves 840160202599 to "Probiotic + prebiotic" (Olly) — consistent with this listing.
Reviews accumulated gradually
Written reviews grew from 287 to 322 across 2026-01-25 – 2026-07-21 with no single manufactured spike (largest 30-day gain ~9).
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.
The listing doesn't publish enough to check the math
The retained listing evidence does not establish net weight, per-serving dose, servings per container, so the dose claim cannot yet be checked against serving arithmetic. This is a neutral evidence gap, not a pass or strike.
Certified by NSF — contents and contaminants checked
OLLY, Public Benefit Corporation appears in NSF’s certified-products registry with 10 certified product(s), but we couldn’t confirm this exact listing is among them. Closest listed product: “PROBIOTIC + PREBIOTIC”. Certification covers contents and contaminants — not effectiveness.
Public label filing not retained
This record does not currently hold an identity-bound public label filing for the exact product. That is a LookCloser coverage gap, not evidence that no filing exists.
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.
180-day review-count history is on file
Exact-listing history records written-review counts from 287 on 2026-01-25 to 322 on 2026-07-21 (net +35). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
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
Which specific study supports this claim — and was it run on this exact formula?
Ask for the citation, how many people took part, the dose used, and whether the study tested this product or just one ingredient in it. Ingredient research is not product evidence.
2
Can you send a clear photo of the full Supplement Facts panel?
It’s the one part of the label required to state what’s inside and how much. A seller who won’t show it before purchase is asking for trust the label would have earned.
3
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
Scan the barcode on the package and confirm it reads 840160202599.
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.
2
Look the product up yourself in NSF’s certified-products registry.
Search “OLLY, Public Benefit Corporation” at info.nsf.org — certification covers contents and contaminants, not effectiveness.
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 24, 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.