“Melatonin 1 mg per serving”
Evidence →The label promises 1 mg per serving. The panel says 1 mg. They match.
Exact product checked · GTIN 00840250402489Carlyle · checked Aug 13, 2026 · on sale since Mar 4, 2022🇺🇸 USPTO wordmark owner · PRIPD, LLC · NEW YORK, USAPackage says manufactured by: Carlyle Nutritionals LLC · Melville, NY 11747 USA
Quick read · Carlyle
Carlyle Kids Melatonin Liquid
Checked against public sources on August 13, 2026 · LookCloser does not sell or recommend supplements.
30servings per container
Does the marketing hold up?
Package and trademark records name different responsible entities. The package says manufactured by: Carlyle Nutritionals LLC, Melville, NY 11747 USA. USPTO names PRIPD, LLC as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing…
Is the dose real?✓Listing and panel agreeboth say 1 mg of Melatonin
What a serving costs$0.27per serving, at the checked price
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇺🇸PRIPD, LLClimited liability company · NEW YORK, USA
Is it the real thing?✓Barcode matches outside 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✓ checked out2◖ partly confirmed1? couldn’t verifyno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Melatonin | 1 mg |
|---|
Printed on the package: Non-GMO · Gluten & Wheat Free · Vegetarian Formula · Milk & Lactose Free · No Artificial sweeteners · GMP · Good Manufacturing Practice
We read 1 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
1 promise checks out. 3 could not be fully confirmed from public sources.
✓Matches the label1
◐Partly confirmed2
“FOR KIDS: A recommended dose of liquid Melatonin to support your child's”
Evidence →Ingredient evidence exists; on dose: label claims 1 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).
“GMP”
Evidence →“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.
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently1
“MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100%”
Evidence →No named laboratory or lot-specific certificate was found for this exact product. No exact brand product page was available for a document check. NSF, IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur.
We looked and found no public proof. That does not count against the product.
Quick read · 4 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
CheckedIs the label honest?
Listing claim matches the Supplement Facts panel
The label promise and the Supplement Facts amount agree.
Evidence and sources
The listing claims 1 mg; the photo-read Supplement Facts panel shows Melatonin at 1 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 findingCheckedIs the label honest?
Every ingredient shows its amount · 1 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 findingCheckedWho is behind it?
The barcode identity checks out · 840250402489.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
UPCitemdb resolves 840250402489 to "Kids Melatonin Liquid | 1 fl oz | Two Pack | Fruit Flavor | by Carlyle" (Carlyle) — consistent with this listing.
Locked evidence record →Open the full source-linked findingPublic contextWill you get what you pay for?
Reaching a studied dose costs about $8/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 $8 per month. A price observation, not a recommendation.
Locked evidence record →Open the full source-linked findingWhat remains open 2
- No FDA recall matched this brand in the current search.
- We have not found a public label filing for this exact product.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
🇺🇸
PRIPD, LLCLimited Liability Company · exact supplement-class mark for CARLYLE
Filed address
2120 Smithtown Avenue, Ronkonkoma, NEW YORK 11779, 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
The label amount is shown beside the range used in the linked ingredient studies.
Dose vs research
Melatonin
STUDIED RANGE06.25 mg
1 mg per serving — within the 0.5–5 mg/day used in the linked studies.
Linked ingredient research · label amount, not a recommendation
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 1 mg of melatonin per serving. Studies we found used 0.5 mg–5 mg a day, so this sits inside that range.
0studied 0.5 mg–5 mg
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Where it sells
Price check for this exact product
Amazon
Exact UPC/GTIN match$7.98
$0.27 per labeled serving
matching UPC/GTIN · checked Aug 14, 2026
View on Amazon ↗iHerb
Not confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search iHerb ↗Target
Not confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Target ↗Walmart
Not confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Walmart ↗Only one exact price was available at build time; prices change by date, seller, and promotion.
No official brand storefront is confirmed in this record. That is neutral, but it prevents a direct brand-price, label, review, and document check.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
Want the complete evidence trail?
The summary stops at product-specific facts. The full report preserves every source, calculation, limitation, and unresolved check for review or sharing.
Record built August 13, 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.