Every ingredient amount is disclosed
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Full record · lc-e7fb8e3a · back to the summary
Sugar Free Magnesium Glycinate Gummies for Kids & Adults
Exact product checkedGTIN not published · checked 2026-08-31
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How to read this report
What this is. We compare what a listing claims against what public records show — label arithmetic, barcode registries, NIH’s label catalog, FDA enforcement data, certification registries, and published research. Every statement below traces to one of those.
What the states mean. Confirmed = an outside source agrees. Contradicted = an outside source disagrees. Caution = something needs explaining. No data = we looked and found nothing — a gap, not a strike.
What it is not. A clean record is not an endorsement and never proof a product works. A thin record is not an accusation. We publish evidence and gaps; the conclusion is yours. Nothing here is medical advice.
Something wrong? Every figure is meant to be checkable — sources are named and linked. Send a correction and we’ll fix the record.
Panel, decoded
The 400 mg number matches named panel rows
MARKETING400 mg — listing title
PANELCalcium (as Calcium Citrate) 300 mg + L-Theanine 60 mg + GABA (Gamma-Aminobutyric Acid) 50 mg = 410 mgMagnesium (as Magnesium Glycinate) 200 mg + Calcium (as Calcium Citrate) 300 mg
component totalWe did the comparison: the listing title uses 400 mg, which equals Calcium (as Calcium Citrate) 300 mg + L-Theanine 60 mg + GABA (Gamma-Aminobutyric Acid) 50 mg. It is a combined amount, not the amount of one ingredient. The full listed active total is 669 mg including the other panel rows. This explains the label framing; it does not independently test the contents.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Calories | 5 | — | |
| Total Carbohydrates | 1.5 g | — | |
| Total Sugars | 0 g | — | |
| Magnesium (as Magnesium Glycinate) | 200 mg | — | |
| Calcium (as Calcium Citrate) | 300 mg | — | |
| L-Theanine | 60 mg | — | |
| GABA (Gamma-Aminobutyric Acid) | 50 mg | — | |
| Zinc (from Zinc Amino Acid Chelate) | 4 mg | — | |
| Vitamin K2 (as Menaquinone-7) | 15 mcg | — | |
| Vitamin D3 (as Plant-based Cholecalciferol) | 500 IU | — | |
| Vitamin C (Ascorbic Acid) | 32 mg | — | |
| Vitamin B6 (as Pyridoxine HCl) | 0.6 mg | — | |
| Chamomile Flower Extract | 40 mg | — | |
| Lavender Extract | 15 mg | — |
Mass check · assumptions shown
2 g listed contents = 0.5 g major actives + 1.5 g carbohydrate
Assume 4 pectin gummies × 2.5–3.5 g each = 10–14 g serving. That leaves roughly 0–2 g for water, pectin, sweetener, acid, and flavor. Serving weight is not printed, so this is a warning, not a closed impossibility.
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a listed “proprietary blend” (legal, but a transparency yellow flag). A label stating no amount at all is non-compliant — a checkable red flag. This panel states amounts; any remaining comparison concerns the front-label framing.
vision:claude-cli:subscription Amounts are shown as listed panel data, not independently lab-tested contents.
Every check we ran
Confirmed evidence
What checked out3
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Confirmed
Exact trademark owner identified
USPTO lists Shenzhen Yuelaiyuehao Trading Co., Ltd (limited company (ltd.); China) (OTHER) in China 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.
The review count moved gradually, not in one burst
Written reviews rose from 22 to 29 between March 24 and September 1, 2026. The largest rise inside any single 30-day window was about 2, so the count moved in steps rather than in one burst.
Documented concerns
What needs caution2
These are documented contradictions or claims that need more evidence. They are separate from missing data.
The label says 2 g of magnesium in 4 gummies — but not what thos
A serving is 4 gummies, and the panel lists 2,000 mg — 2 g — of magnesium in that serving. What the panel doesn’t give is the one number needed to check it: what a serving weighs. Gummies of this type usually run somewhere around 2.5 to 3.5 grams each, which would put 4 of them near 10 to 14 grams. If that holds here, magnesium would be a high share of the serving’s weight, and that is why we stopped on this number. But we did not weigh these gummies. The 2.5–3.5 gram figure is a general estimate for the format, not a measurement of this product. One published number would settle it: the weight of one gummy, or of a 4-gummy serving. Until then we can’t confirm the 2 g and we can’t dispute it. Nothing here says the product is short — only that the label doesn’t let anyone check. Checked September 3, 2026.
The label’s 400 mg reads 2× larger than the magnesium on the pan
Per-serving maths, not per capsule. 400 mg is what you get from 2 gummys. One serving on the panel has 200 mg. You are getting 200 mg of magnesium per serving.
Unresolved public record
What is still missing6
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Multi-ingredient formula — panel read, serving weight unknown
We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. A gap in the label’s information, not evidence of a problem.
Research context is available for the listed ingredients
Published sources describe how magnesium, zinc have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.
No recall found — which is not the same as being tested
This means only that no enforcement record matched the brand name — it does not mean the product was tested, reviewed, or cleared by FDA. New and untested products also have no recall records.
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 35 on 2026-03-10 to 29 on 2026-09-01 (net -6). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
Package and trademark records name different responsible entitie
The package says manufactured for: JIANKYIZ. USPTO names Shenzhen Yuelaiyuehao Trading Co., Ltd (limited company (ltd.); China) as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing relationship; the saved records do not establish the relationship.
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
Answered by the panel: the 0.4 g listing number equals Calcium (as Calcium Citrate) 300 mg + L-Theanine 60 mg + GABA (Gamma-Aminobutyric Acid) 50 mg. What lot-specific document confirms those listed amounts?
The panel resolves what the headline number includes. The remaining question is whether the product in hand matches those listed amounts; ask for a lot-specific certificate of analysis.
2
What is the product’s UPC or GTIN?
The barcode is how a product gets matched to outside records — certification registries, label databases, recall data. Without it, almost nothing can be cross-checked.
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
Compare the panel on the bottle in your hand to the one shown in this record.
Ours was read from listing photos and can contain reading errors. The physical label is the source of truth — if they disagree, tell us and we’ll correct the record.
2
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.
What the listing promises — claim by claim
Why is this shown?
A listing’s promises are the reason people buy. Each one gets its own row: what was promised, what evidence would settle it, and what we could actually find. We never call a claim false — only whether proof proportionate to it exists on the public record.
| Claim | Status | What we found |
|---|---|---|
| Manufacturing claim “…GMP-Compliant” | Partly supported We looked for: the facility registration or certificate behind the claim | “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. |
| Benefit claim “Sugar Free Magnesium Glycinate Gummies for Kids & Adults - Zzz Support, Relaxation & Cognition Support, 200/400mg Magnesium Gummies with L-Theanine, GABA, Calcium, B6, D3” | Partly supported We looked for: whether the ingredient doses on the label match the doses used in published research | Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed. |
“No evidence located” does not mean a claim is false — it means the seller has not put evidence proportionate to the claim on the public record, and we could not find any. Absence of proof is not proof of absence.
This label vs. the doses studied
Why is this shown?
An ingredient can be well-studied at one amount and barely studied at the amount in your bottle. This lines the label up against the doses researchers actually used. It answers ‘are these the same numbers?’ — never ‘should you take this?’
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Magnesium (as Magnesium Glycinate) | shaded = doses used in studies (200 mg–420 mg) · bar = this label | 200 mg — within the studied range |
| Zinc (from Zinc Amino Acid Chelate) | shaded = doses used in studies (8 mg–40 mg) · bar = this label | 4 mg — below the studied range |
Matching a studied dose does not mean the product works, and missing it does not mean it fails — it shows whether the label and the research are talking about the same amounts. Not a recommendation to take any amount.
Documented cautions
- magnesium — daily oral use; chelated forms (glycinate) are studied for absorption — note labels may state compound mass rather than elemental magnesium, which differs ~7-fold
- zinc — daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice
Statements from published sources about these ingredients — not advice about this product, and not a complete safety review. Anyone taking medication should talk to a pharmacist or clinician.
Verifiability profile — 2 of 6 public signals
✓ Supplement Facts visible in photos✓ Brand's own store found· Per-serving dose established — not published· UPC / GTIN published — not published· Found in NIH's label catalog (DSLD) — not published· Third-party lab named or registry-certified — not published
What this listing gives the public to check. Publishing these signals doesn't prove quality — but withholding them means claims can only be taken on faith.
Identity
| LookCloser record ID | lc-e7fb8e3a (internal — no barcode published, which limits cross-checking) |
| Brand | JIANKYTZ |
| Source listing identifier | B0FXGR4LLM |
| Retailer listing title | Sugar Free Magnesium Glycinate Gummies for Kids & Adults - Zzz Support… show full titleSugar Free Magnesium Glycinate Gummies for Kids & Adults - Zzz Support, Relaxation & Cognition Support, 200/400mg Magnesium Gummies with L-Theanine, GABA, Calcium, B6, D3, C & K2, Grape Flavor, 60 Ct |
| USPTO brand owner | Shenzhen Yuelaiyuehao Trading Co., Ltd (limited company (ltd.); China) · OTHER · China |
| Owner filed address | China); Bantian Street, Longgang District, 701, No. 1-2, Lane 8, Hekan Village, Shenzhen, 518000, CHINA |
From the label (photo-read)
| Serving size | Serving Size 1 Gummy / 2 Gummies |
| Servings per container | 60 |
| Pack statement | 60 Gummies |
| Badges printed on pack | Certified Gluten-Free, Gluten-Free, Non-GMO, Vegan, Vegetarian Friendly, Sugar-Free, Alcohol Free, GMP-Compliant |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Calories | 5 | High clearly legible in the photo |
| Total Carbohydrates | 1.5 g | High clearly legible in the photo |
| Total Sugars | 0 g | High clearly legible in the photo |
| Magnesium (as Magnesium Glycinate) | 200 mg | High clearly legible in the photo |
| Calcium (as Calcium Citrate) | 300 mg | High clearly legible in the photo |
| L-Theanine | 60 mg | High clearly legible in the photo |
| GABA (Gamma-Aminobutyric Acid) | 50 mg | High clearly legible in the photo |
| Zinc (from Zinc Amino Acid Chelate) | 4 mg | High clearly legible in the photo |
| Vitamin K2 (as Menaquinone-7) | 15 mcg | High clearly legible in the photo |
| Vitamin D3 (as Plant-based Cholecalciferol) | 500 IU | High clearly legible in the photo |
| Vitamin C (Ascorbic Acid) | 32 mg | High clearly legible in the photo |
| Vitamin B6 (as Pyridoxine HCl) | 0.6 mg | High clearly legible in the photo |
| Chamomile Flower Extract | 40 mg | High clearly legible in the photo |
| Lavender Extract | 15 mg | High clearly legible in the photo |
Claims printed on the packaging:
“Kids & Adults” · “Zzz Support*” · “SUGAR FREE” · “L-Theanine & GABA” · “Chamomile & Lavender” · “Calcium, Zinc, Vitamin K2 D3 C B6” · “SWEET Zzz SUPPORT FOR KIDS AND ADULTS” · “NATURAL Zzz AID FORMULA, MELATONIN-FREE”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Ingredient science — NIH references
Magnesium — NIH ODS · MedlinePlus · PubMed (11,814) · UL 350 mg (SUPPLEMENTAL magnesium only (not from food))
Calcium — NIH ODS · MedlinePlus · PubMed (48,938) · UL 2500 mg (adults 19-50 (2,000 mg for 51+))
Zinc — NIH ODS · MedlinePlus · PubMed (19,708) · UL 40 mg (adults, from all sources)
Vitamin K — NIH ODS · MedlinePlus · PubMed (2,124) · no UL established; interacts with warfarin
Vitamin D — NIH ODS · MedlinePlus · PubMed (26,500) · UL 100 mcg (adults; 100 mcg = 4,000 IU)
Vitamin C — NIH ODS · MedlinePlus · PubMed (11,019) · UL 2000 mg (total intake, adults)
Vitamin B6 — NIH ODS · MedlinePlus · PubMed (2,372) · UL 100 mg (adults; chronic high intake linked to neuropathy)
Reference data from the NIH Office of Dietary Supplements, IOM Dietary Reference Intakes, and PubMed. A Tolerable Upper Intake Level is a documented reference figure, not a safety verdict — both the listed amount and the reference are shown for your own judgment. LookCloser gives no medical advice.
Related research & consistency
magnesium — NIH ODS — Magnesium fact sheet · PubMed search: magnesium glycinate supplementation · WebMD: magnesium · ClinicalTrials.gov — 3,206 registered studies
ℹ Use pattern in research: daily oral use; chelated forms (glycinate) are studied for absorption — note labels may state compound mass rather than elemental magnesium, which differs ~7-fold.
zinc — NIH ODS — Zinc fact sheet · PubMed search: zinc supplementation trial · ClinicalTrials.gov — 1,598 registered studies
ℹ Use pattern in research: daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice.
These notes state where label numbers and marketing framing sit relative to published research — documentation for your own judgment, not medical advice. LookCloser does not advise for or against taking any supplement.
Record lc-e7fb8e3a · built September 03, 2026 · lookcloser.ai · corrections@lookcloser.ai