full reportFull record · lc-8fa13925 · back to the summary
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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.
The listing-image panel publishes an amount for each of its 6 listed rows. That supports ingredient-by-ingredient review; it does not verify the contents.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Calories | 10 | — | |
| Total Carbohydrate | <1 g | — | |
| Protein | 2 g | — | |
| Iron | 3 mg | — | |
| Sodium | 60 mg | — | |
| Spirulina (Arthrospira platensis) | 3 g | — |
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; the open question is whether those listed amounts are independently verified and how they compare with relevant research.
vision:google/gemini-flash-1.5 Amounts are shown as listed panel data, not independently lab-tested contents.
Every check we ran
Confirmed evidence
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Label #179840 “Pure Hawaiian Spirulina Pacifica 500 mg” (Nutrex Hawaii), 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 NIH marks this label as off-market (superseded or discontinued version).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 — Nutrex Hawaii Inc., Kailuna-Kona, HI, USA.
USPTO lists Cyanotech Corporation (CORPORATION) in NEVADA, USA 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.
Written reviews grew from 1426 to 1429 across 2026-02-20 – 2026-07-20 with no single manufactured spike (largest 30-day gain ~3).
Documented concerns
These are documented contradictions or claims that need more evidence. They are separate from missing data.
No contradictions or product-specific cautions were found at this check depth.
Unresolved public record
We looked for these signals but could not settle them from public sources. A gap is not a strike.
The observed listing claims third-party testing without naming a lab or certifier. No product-bound report is saved, so the claim cannot be verified as stated. NSF, IFOS, USP, and Informed-Sport were not checked in this record.
Technical check only: the panel’s 2 actives sum to 3,003 mg, which fits inside the ≈3,000 mg serving. This means the numbers are physically possible — it does not mean the formula was validated or the contents confirmed.
66 servings × 3 g = 198 g, matching the printed net weight 200 g (NET WT 200 G). This checks agreement within the photo read; it is not an independent contents test.
Published sources describe how magnesium 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.
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.
Exact-listing history records written-review counts from 1,425 on 2026-01-31 to 1,429 on 2026-07-20 (net +4). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
What to ask and check
Ask the brand or seller
Can you send the certificate of analysis (COA) for the lot number on my bottle?
A real COA names the testing laboratory, the test date, the lot it covers, and what was measured. “Third-party tested” with no document behind it is a marketing sentence.
Which specific study supports this claim — and was it run on this exact formula?
Ask for the citation, how many people took part, the dose used, and whether the study tested this product or just one ingredient in it. Ingredient research is not product evidence.
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.
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
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.
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
| Claim | Status | What we found |
|---|---|---|
| Clinical-evidence claim “…y in food or beverages. WHOLE-BODY WELLNESS: Clinically studied, antioxidant-rich microalgae supporting cell…” | No evidence located We looked for: a named, citable clinical study of this product or formula | We found no named, citable study of this product or formula. The claim may rest on ingredient research rather than a trial of this product. |
| Quality-testing claim “…GAN FARM GROWN SINCE 1984 FOR YOUR WELLBEING Third Party Tested. Free from Soy, Gluten, Lactose, Yeast, Corn…” | Claimed, not verifiable We looked for: the observed listing, saved brand product page, any linked COA or test report; NSF, IFOS, USP, Informed-Sport were not queried | No named laboratory or lot-specific certificate was found for this exact product. A related brand page names no testing issuer and links no product-bound report; its UPC is not published. 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. |
| Benefit claim “…Tablets, Farm Grown in Kona, Non-GMO, Immune Support & Cellular Energy, 400 Count PURE BY ORIGIN:…” | 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 — see Related research below. 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
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Magnesium | shaded = doses used in studies (200 mg–420 mg) · bar = this label | 15 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
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 — 3 of 6 public signals
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-8fa13925 (internal — no barcode published, which limits cross-checking) |
| Brand | Nutrex Hawaii |
| Source listing identifier | B0039ITKSI |
| Retailer listing title | Nutrex Hawaii Pure Hawaiian Spirulina – Vegan Superfood, 500 mg Tablet… show full titleNutrex Hawaii Pure Hawaiian Spirulina – Vegan Superfood, 500 mg Tablets, Farm Grown in Kona, Non-GMO, Immune Support & Cellular Energy, 400 Count |
| USPTO brand owner | Cyanotech Corporation · CORPORATION · NEVADA, USA |
| Owner filed address | Ste. 102, 73-4460 Queen Kaahumanu Hwy, Kailua-Kona, HAWAII 96740, UNITED STATES |
From the label (photo-read)
| Serving size | 6 Tablets (3 g) |
| Servings per container | 66 |
| Net weight | NET WT 200 G |
| Pack statement | 400 TABLETS |
| Badges printed on pack | VERIFIED non-GMO, M, CERTIFIED VEGAN, K, VEGAN |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Calories | 10 | High clearly legible in the photo |
| Total Carbohydrate | <1 g | High clearly legible in the photo |
| Protein | 2 g | High clearly legible in the photo |
| Iron | 3 mg | High clearly legible in the photo |
| Sodium | 60 mg | High clearly legible in the photo |
| Spirulina (Arthrospira platensis) | 3 g | High clearly legible in the photo |
Claims printed on the packaging:
“VEGAN SUPERFOOD SUPPLEMENT” · “IMMUNE & CARDIOVASCULAR SUPPORT” · “100% VEGAN” · “FARM GROWN” · “SINCE 1984” · “FOR YOUR WELLBEING” · “Third Party Tested.” · “Free from Soy, Gluten, Lactose, Yeast, Corn & Wheat, Herbicide, and Artificial Colors.”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Supplement Facts — NIH DSLD registry
serving: 6 Tablet(s) · contents: 100 Gram(s) · label #179840 at dsld.od.nih.gov
| Ingredient | Amount per serving |
|---|---|
| Calories | 10 Calorie(s) |
| Total Carbohydrates | 1 Gram(s) |
| Protein | 2 Gram(s) |
| Vitamin A | 8000 IU |
| Vitamin K | 40 mcg |
| Vitamin B12 | 9 mcg |
| Iron | 5 mg |
| Magnesium | 15 mg |
| Manganese | 0.2 mg |
| Sodium | 35 mg |
| Hawaiian Spirulina | 3 Gram(s) |
mcg = 1/1,000 of a mg. As filed in the NIH Dietary Supplement Label Database — the authoritative digitization of the printed label. Label versions can lag reformulations.
Where it sells
A brand storefront was found, but no exact-product price was published or matched to this exact product at build time.
Brand store nutrexhawaii.com: 29 supplement products — a single-category catalog.
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science — NIH references
Vitamin A — NIH ODS · MedlinePlus · PubMed (10,699) · UL 3000 mcg (preformed vitamin A (retinol); excludes beta-carotene)
Vitamin K — NIH ODS · MedlinePlus · PubMed (2,124) · no UL established; interacts with warfarin
Vitamin B12 — NIH ODS · MedlinePlus · PubMed (5,006) · no UL established
Iron — NIH ODS · MedlinePlus · PubMed (28,479) · UL 45 mg (adults, from all sources)
Magnesium — NIH ODS · MedlinePlus · PubMed (11,814) · UL 350 mg (SUPPLEMENTAL magnesium only (not from food))
Manganese — NIH ODS · MedlinePlus · PubMed (3,608) · UL 11 mg (adults)
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.
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-8fa13925 · built July 25, 2026 · lookcloser.ai · corrections@lookcloser.ai