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 public sources did not settle the marketing promises on this label.
Published research exists for ingredients in this formula — see Related research below. Whether this product’s doses match those studies could not be confirmed.
Ingredient research can support context, but it is not a trial of this exact product.
EXTRA STRENGTH+ · MAXIMUM STRENGTH*
Headlines first. Open evidence only when you want the source trail.
The listed contents leave too little room for the serving itself, or exceed its stated mass. At least one label number needs an explanation.
Listed contents total at least 3.2 g per 4-gummy serving: 0.2 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 d…
Locked evidence record →Open the full source-linked findingEvery ingredient shows its real amount — nothing is hidden in a proprietary blend.
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 findingThe barcode matches, so we are checking the right product rather than a look-alike.
Open Food Facts resolves 852933008413 to "Sleep Extra Strength" (OLLY) — consistent with this listing.
Locked evidence record →Open the full source-linked findingA government label filing makes the listed formula easier to inspect and compare over time.
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 NIH marks this label as off-market (superseded or discontinued version).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 findingGradual growth is more ordinary. A sudden burst deserves a closer look.
Written reviews grew from 380 to 408 across 2026-02-21 – 2026-07-19 with no single manufactured spike (largest 30-day gain ~9).
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 ↗
The label amount is shown beside the ranges used in the linked ingredient studies.
3 mg per serving — within the 0.5–5 mg/day used in the linked studies.
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 3 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.
matching UPC/GTIN · checked Jul 25, 2026
View on Amazon ↗matching UPC/GTIN · checked Jul 24, 2026
View on iHerb ↗Official shopping lead; excluded from exact price comparisons.
Sleep Blackberry Zen · 25 Servings. Confirm the package UPC/GTIN before buying.
Check brand website ↗Search results remain not linked to this exact product until this retailer publishes the matching UPC/GTIN.
Search Target ↗Search 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. Amazon was lowest at $12.88; iHerb was highest at $15.99 — a $3.11 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.
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.