“PARTY LAB”
Evidence →A testing body is named on the listing, but we found no lot-specific certificate of analysis.
Exact product checked · GTIN 00810154160334Renzo's · checked Aug 12, 2026 · on sale since Oct 18, 2024🇺🇸 USPTO wordmark owner · Solara, Inc. · FLORIDA, USA
Quick read · Renzo's
Renzo's Captain Calm Kids Magnesium Supplement with…
Checked against public sources on August 12, 2026 · LookCloser does not sell or recommend supplements.
60units
60servings per container
Does the marketing hold up?
Every ingredient shows its amount · 4 ingredients listed. Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
Is the dose real?Panel read — dose not verified4 ingredients listed; no advertised amount we could confirm against them
What a serving costs$0.33per serving, at the checked price
Is it tested?NSF seal printed on the labelwe read it off the package photo; not confirmed in NSF’s registry
Who’s behind it?🇺🇸Solara, Inc.corporation · FLORIDA, 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.
2◖ partly confirmedno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Magnesium (as dimagnesium malate) | 15 mg |
|---|---|
| L-Theanine | 25 mg |
| Passionflower (Passiflora incarnata) Flower Extract | 1 mg |
| Lemon balm (Melissa officinalis) Leaf Extract | 5 mg |
Printed on the package: 3RD PARTY LAB TESTED · Vegan · Non-GMO · Gluten-free · NSF · Third-party lab tested · NSF-certified facility
We read 4 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 confirmed2
“Renzo's Captain Calm Kids Magnesium Supplement with L-Theanine, Dissolvable Kids Vitamins for Relaxation and Mood Support, Sugar-Free Melty Tabs,…”
Evidence →Published research exists for ingredients in this formula. 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.
Quick read · 2 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
CheckedIs the label honest?
Every ingredient shows its amount · 4 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 · 810154160334.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
UPCitemdb resolves 810154160334 to "Renzo’s Captain Calm Magnesium for Kids with L-Theanine Sugar-Free Vegan Melty" (Renzo s) — consistent with this listing.
Locked evidence record →Open the full source-linked findingWhat remains open 3
- No FDA recall matched this brand in the current search.
- We have not found a public label filing for this exact product.
- No dated review-history series is on file yet.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
🇺🇸
Solara, Inc.Corporation · exact supplement-class mark for RENZO'S
Filed address
3705 NW 115th Ave Suite 6, Doral, FLORIDA 33178, 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 15 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits below that range.
0studied 200 mg–420 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$19.99
$0.33 per labeled serving
matching UPC/GTIN · checked Aug 12, 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 12, 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.