The label promises 5 mg per serving. The panel says 5 mg. They match.

OLLY Extra Strength Sleep Gummies for Adults
Checked against public sources on July 25, 2026 · LookCloser does not sell or recommend supplements.
Does the marketing hold up?
Listed contents barely fit the format’s physics The listed contents leave too little room for the serving itself, or exceed its stated mass. At least one label number needs an explanation.
“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.
The checks, one by one
1 promise checks out. 1 could not be fully confirmed from public sources.
✓Checks out1
◐Partly confirmed1
Ingredient evidence exists; on dose: label claims 5 mg/serving — within the range commonly used in research (sleep trials commonly use 0.5–5 mg; higher doses are not shown to work better and gummy products have repeatedly been found to differ from their labels).
Ingredient research can support context, but it is not a trial of this exact product.
Marketing language, not scored
EXTRA STRENGTH®
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Listed contents barely fit the format’s physics
The listed contents leave too little room for the serving itself, or exceed its stated mass. At least one label number needs an explanation.
Evidence and sources
Listed contents total at least 3 g per 4-gummy serving: 0 g of major actives plus 3 g carbohydrate. A typical pectin gummy is assumed here to weigh 2.5–3.5 g, making a 4-gummy serving roughly 10–14 g. The panel does not state serving weight, so this remains a warning: the decla…
Locked evidence record →Open the full source-linked findingListing claim matches the Supplement Facts panel
The label promise and the Supplement Facts amount agree.
Evidence and sources
The listing claims 5 mg; the photo-read Supplement Facts panel shows Melatonin at 5 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.
Locked evidence record →Open the full source-linked findingThe barcode identity checks out · 840160201462.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
UPCitemdb resolves 840160201462 to "OLLY Extra Strength Sleep Gummies with 5mg Melatonin - Blackberry Zen - 120ct" (OLLY) — consistent with this listing.
Locked evidence record →Open the full source-linked findingRegistered in NIH's supplement label database (DSLD)
A government label filing makes the listed formula easier to inspect and compare over time.
Evidence and sources
Label #180866 “Restful Sleep Blackberry Zen” (OLLY), entered 2018-09-21, with the full Supplement Facts on file — see the panel below. NIH marks this label as off-market (superseded or discontinued version). Company on file: Distributor — OLLY Public Benefit Corp., San Francisco,…
Locked evidence record →Open the full source-linked findingReaching a studied dose costs about $19/month
Comparing cost at a research-relevant amount shows how quickly the package is used and what the routine actually costs.
Evidence and sources
At 1.0 serving(s) a day to reach the low end of the studied range (0.5–5 mg), this product runs roughly $19 per month. A price observation, not a recommendation.
Locked evidence record →Open the full source-linked findingReviews grew steadily — about 17 between January 31, 2026 to July 20, 2026, with no sudden spike.
Gradual growth is more ordinary. A sudden burst deserves a closer look.
Evidence and sources
Written reviews grew from 158 to 174 across 2026-02-14 – 2026-07-20 with no single manufactured spike (largest 30-day gain ~5).
Locked evidence record →Open the full source-linked findingFiled 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 ↗
Dose and research context
The label amount is shown beside the ranges used in the linked ingredient studies.
Melatonin
5 mg per serving — within the 0.5–5 mg/day used in the linked studies.
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 5 mg of melatonin per serving. Studies we found used 0.5 mg–5 mg a day, so this sits inside that range.
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Price check for this exact product
iHerb
Exact UPC/GTIN match$0.55 per labeled serving
matching UPC/GTIN · checked Jul 24, 2026
View on iHerb ↗Amazon
Exact UPC/GTIN match$0.63 per labeled serving
matching UPC/GTIN · checked Jul 25, 2026
View on Amazon ↗Brand website
Official product-page candidate · UPC absentOfficial shopping lead; excluded from exact price comparisons.
Sleep Blackberry Zen · 25 Servings. Confirm the package UPC/GTIN before buying.
Check brand website ↗Target
Not confirmedSearch results remain not linked to this exact product until this retailer publishes the matching UPC/GTIN.
Search Target ↗Walmart
Not confirmedSearch results remain not linked to this exact product until this retailer publishes the matching UPC/GTIN.
Search Walmart ↗Same UPC/GTIN observed across 2 sellers. iHerb was lowest at $32.99; Amazon was highest at $37.70 — a $4.71 range at check time.
The brand-page price is shown as a shopping lead only. It is excluded from the exact-product price difference because the page does not publish this record's matching UPC/GTIN.
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.
Record built July 25, 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.