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Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation."},"html_anchor":"finding-nih-published-research-research-context-is-available-for-the-listed-ingr","report_url":"https://lookcloser.ai/p/lc-8fa13925/full#finding-nih-published-research-research-context-is-available-for-the-listed-ingr"},{"id":"review_velocity_gradual","source":"keepa","class":"ok","weight":20,"headline":"Reviews accumulated gradually","detail":"Written reviews grew from 1426 to 1429 across 2026-02-20 – 2026-07-20 with no single manufactured spike (largest 30-day gain ~3).","proof":{"first":["2026-02-20",1426],"last":["2026-07-20",1429],"max_30d_review_gain":3},"identity_basis":"listing","status":"live","severity":"ok","source_refs":["source_listing"],"source_url":"https://www.amazon.com/dp/B0039ITKSI","scope":"exact_listing","inference_level":"direct_observation","observed_at":"2026-07-25","presentation_tone":"ok","evidence_id":"ev-91c6418c1736","evidence_url":"https://lookcloser.ai/e/ev-91c6418c1736","content_fingerprint":"sha256:453cf2f6de4b1dd2e609819455ee13bef73d132c8653c2b30cb0b182becaa7fc","registry_receipts":[],"evidence":{"summary":{"first":["2026-02-20",1426],"last":["2026-07-20",1429],"max_30d_review_gain":3},"source_refs":["source_listing"],"source_records":[{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-25","looked":"LookCloser checked keepa.","found":"Written reviews grew from 1426 to 1429 across 2026-02-20 – 2026-07-20 with no single manufactured spike (largest 30-day gain ~3)."},"html_anchor":"finding-review_velocity_gradual","report_url":"https://lookcloser.ai/p/lc-8fa13925/full#finding-review_velocity_gradual"},{"id":"keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","source":"Keepa exact-listing history","class":"gap","severity":"info","weight":19,"headline":"This item belongs to a catalog variation family","detail":"The paid catalog links this exact item to a parent listing. 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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.","identity_basis":"listing","status":"live","source_refs":["keepa_history","source_listing"],"source_url":"https://keepa.com/#!product/1-B0039ITKSI","scope":"exact_listing","inference_level":"gap","observed_at":"2026-07-25","presentation_tone":"gap","evidence_id":"ev-a763eebfcb68","evidence_url":"https://lookcloser.ai/e/ev-a763eebfcb68","content_fingerprint":"sha256:73f3a293dd3e885216fdab1d96717f8bee7d21151543f86d539f51b9b1bf9095","registry_receipts":[],"evidence":{"summary":"The paid catalog links this exact item to a parent listing. 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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."},"html_anchor":"finding-keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","report_url":"https://lookcloser.ai/p/lc-8fa13925/full#finding-keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam"},{"id":"keepa-exact-listing-history-180-day-review-count-history-is-on-file","source":"Keepa exact-listing history","class":"gap","severity":"info","weight":16,"headline":"180-day review-count history is on file","detail":"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.","proof":"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.","identity_basis":"listing","status":"live","source_refs":["keepa_history","source_listing"],"source_url":"https://keepa.com/#!product/1-B0039ITKSI","scope":"exact_listing","inference_level":"gap","observed_at":"2026-07-25","presentation_tone":"gap","evidence_id":"ev-2681b159dc83","evidence_url":"https://lookcloser.ai/e/ev-2681b159dc83","content_fingerprint":"sha256:dfb2f366bb1cd240cbc4717150136670e497fa096295f898fc1d69df273b747e","registry_receipts":[],"evidence":{"summary":"Exact-listing history records written-review counts from 1,425 on 2026-01-31 to 1,429 on 2026-07-20 (net +4). 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Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic."},"html_anchor":"finding-keepa-exact-listing-history-180-day-review-count-history-is-on-file","report_url":"https://lookcloser.ai/p/lc-8fa13925/full#finding-keepa-exact-listing-history-180-day-review-count-history-is-on-file"}],"evidence_records":[{"evidence_id":"ev-cfa1187d9044","record_id":"lc-8fa13925","gtin":null,"claim_key":"finding:label-and-serving-arithmetic-no-physical-impossibility-in-the-listed-amo","primary_source":"facts_panel","claim":"No physical impossibility in the listed amounts","bucket":"unverified","looked":"LookCloser checked Label and serving arithmetic.","found":"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.","proof":{"detail":"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."},"source_refs":[{"source":"facts_panel","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:b3f26d284f69d306a95fefc302c4fe247c72c3793fc4b1090c2d0818a0f4e2fa","evidence_url":"https://lookcloser.ai/e/ev-cfa1187d9044"},{"evidence_id":"ev-e8cff675cb38","record_id":"lc-8fa13925","gtin":null,"claim_key":"finding:nih-published-research-research-context-is-available-for-the-listed-ingr","primary_source":"nih_ods_magnesium","claim":"Research context is available for the listed ingredients","bucket":"unverified","looked":"LookCloser checked NIH / published research.","found":"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.","proof":{"detail":"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."},"source_refs":[{"source":"nih_ods_magnesium","source_url":"https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient","registry_name":"NIH ODS","identifier":"magnesium","receipt_label":"NIH ODS — Magnesium fact sheet"},{"source":"pubmed_magnesium","source_url":"https://pubmed.ncbi.nlm.nih.gov/?term=magnesium+glycinate+supplementation","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:9df3ad89e426019d1c13b71fea1e434f7830ddd0fcae233cab581835a63f1202","evidence_url":"https://lookcloser.ai/e/ev-e8cff675cb38"},{"evidence_id":"ev-8e4879919dad","record_id":"lc-8fa13925","gtin":null,"claim_key":"finding:label-and-serving-arithmetic-photo-read-pack-math-is-internally-consiste","primary_source":"facts_panel","claim":"Photo-read pack math is internally consistent","bucket":"unverified","looked":"LookCloser checked Label and serving arithmetic.","found":"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.","proof":{"detail":"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."},"source_refs":[{"source":"facts_panel","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:07c93448cee7741edb7b7166ef6b0b541cd8b5cd4d370728cce8d96526a3ce25","evidence_url":"https://lookcloser.ai/e/ev-8e4879919dad"},{"evidence_id":"ev-af069ad96062","record_id":"lc-8fa13925","gtin":null,"claim_key":"finding:nih-label-catalog-registered-in-nih-s-supplement-label-database-dsld","primary_source":"nih_dsld_search","claim":"Registered in NIH's supplement label database (DSLD)","bucket":"checks_out","looked":"LookCloser checked NIH label catalog.","found":"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.","proof":{"detail":"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."},"source_refs":[{"source":"nih_dsld_search","source_url":"https://dsld.od.nih.gov/label/179840","observed_at":"2026-07-25","identity_basis":"brand_product_name","scope":"product_label","registry_name":"NIH DSLD","identifier":"Label #179840","receipt_label":"NIH DSLD · Label #179840"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:96ae0d6e323e7bc939541c8af958fad21e076c8972b7d013b23cba2901e6e80b","evidence_url":"https://lookcloser.ai/e/ev-af069ad96062"},{"evidence_id":"ev-cf9d2b9ec395","record_id":"lc-8fa13925","gtin":null,"claim_key":"finding:uspto-trademark-registry-exact-trademark-owner-identified","primary_source":"uspto_search","claim":"Exact trademark owner identified","bucket":"checks_out","looked":"LookCloser checked USPTO trademark registry.","found":"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.","proof":{"detail":"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."},"source_refs":[{"source":"uspto_search","source_url":"https://tsdr.uspto.gov/#caseNumber=85423915&caseSearchType=US_APPLICATION&caseType=DEFAULT&searchType=statusSearch","observed_at":"2026-07-25","identity_basis":"exact_wordmark_and_supplement_goods","scope":"brand","registry_name":"USPTO","identifier":"Registration 5510619","receipt_label":"USPTO · Registration 5510619"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:3442b79dcf6914119ad7b43c1f239e468df84843398479f4c28f73e331ebc0eb","evidence_url":"https://lookcloser.ai/e/ev-cf9d2b9ec395"},{"evidence_id":"ev-41cdfe139a48","record_id":"lc-8fa13925","gtin":null,"claim_key":"finding:certification-laboratory-record-testing-claimed-documentation-not-found","primary_source":"source_listing","claim":"Testing claimed — documentation not found","bucket":"unverified","looked":"LookCloser checked Certification / laboratory record.","found":"The observed listing claims third-party testing without naming a lab or certifier. No product-bound report is retained, so the claim cannot be verified as stated. NSF, IFOS, USP, and Informed-Sport were not checked in this record.","proof":{"detail":"The observed listing claims third-party testing without naming a lab or certifier. No product-bound report is retained, so the claim cannot be verified as stated. NSF, IFOS, USP, and Informed-Sport were not checked in this record."},"source_refs":[{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:7ec859f996e9ddaaf3d59078efe0008dfc4cccac445a212fd6ac018253df2e7b","evidence_url":"https://lookcloser.ai/e/ev-41cdfe139a48"},{"evidence_id":"ev-2681b159dc83","record_id":"lc-8fa13925","gtin":null,"claim_key":"finding:keepa-exact-listing-history-180-day-review-count-history-is-on-file","primary_source":"keepa_history","claim":"180-day review-count history is on file","bucket":"unverified","looked":"LookCloser checked Keepa exact-listing history.","found":"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.","proof":{"detail":"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."},"source_refs":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B0039ITKSI","observed_at":"2026-07-25","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:dfb2f366bb1cd240cbc4717150136670e497fa096295f898fc1d69df273b747e","evidence_url":"https://lookcloser.ai/e/ev-2681b159dc83"},{"evidence_id":"ev-a763eebfcb68","record_id":"lc-8fa13925","gtin":null,"claim_key":"finding:keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","primary_source":"keepa_history","claim":"This item belongs to a catalog variation family","bucket":"unverified","looked":"LookCloser checked Keepa exact-listing history.","found":"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.","proof":{"detail":"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."},"source_refs":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B0039ITKSI","observed_at":"2026-07-25","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:73f3a293dd3e885216fdab1d96717f8bee7d21151543f86d539f51b9b1bf9095","evidence_url":"https://lookcloser.ai/e/ev-a763eebfcb68"},{"evidence_id":"ev-91c6418c1736","record_id":"lc-8fa13925","gtin":null,"claim_key":"finding:review_velocity_gradual","primary_source":"source_listing","claim":"Reviews accumulated gradually","bucket":"checks_out","looked":"LookCloser checked keepa.","found":"Written reviews grew from 1426 to 1429 across 2026-02-20 – 2026-07-20 with no single manufactured spike (largest 30-day gain ~3).","proof":{"first":["2026-02-20",1426],"last":["2026-07-20",1429],"max_30d_review_gain":3},"source_refs":[{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:453cf2f6de4b1dd2e609819455ee13bef73d132c8653c2b30cb0b182becaa7fc","evidence_url":"https://lookcloser.ai/e/ev-91c6418c1736"},{"evidence_id":"ev-d4c10e1677bb","record_id":"lc-8fa13925","gtin":null,"claim_key":"claim:clinical","primary_source":"source_listing","claim":"“in food or beverages. 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WHOLE-BODY WELLNESS: Clinically studied, antioxidant-rich microalgae supporting cell…"},"source_refs":[{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0039ITKSI","observed_at":"2026-07-25","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"nih_ods_vitamin-a","source_url":"https://ods.od.nih.gov/factsheets/VitaminA-HealthProfessional/","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient","registry_name":"NIH ODS","identifier":"vitamin a","receipt_label":"NIH ODS · vitamin a fact sheet"},{"source":"pubmed_vitamin-a","source_url":"https://pubmed.ncbi.nlm.nih.gov/?term=%22vitamin+a%22","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient"},{"source":"nih_ods_vitamin-k","source_url":"https://ods.od.nih.gov/factsheets/VitaminK-HealthProfessional/","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient","registry_name":"NIH ODS","identifier":"vitamin k","receipt_label":"NIH ODS · vitamin k fact sheet"},{"source":"pubmed_vitamin-k","source_url":"https://pubmed.ncbi.nlm.nih.gov/?term=%22vitamin+k%22","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient"},{"source":"nih_ods_vitamin-b12","source_url":"https://ods.od.nih.gov/factsheets/VitaminB12-HealthProfessional/","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient","registry_name":"NIH ODS","identifier":"vitamin b12","receipt_label":"NIH ODS · vitamin b12 fact sheet"},{"source":"pubmed_vitamin-b12","source_url":"https://pubmed.ncbi.nlm.nih.gov/?term=%22vitamin+b12%22","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient"},{"source":"nih_ods_iron","source_url":"https://ods.od.nih.gov/factsheets/Iron-HealthProfessional/","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient","registry_name":"NIH ODS","identifier":"iron","receipt_label":"NIH ODS · iron fact sheet"},{"source":"pubmed_iron","source_url":"https://pubmed.ncbi.nlm.nih.gov/?term=%22iron%22","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient"},{"source":"nih_ods_magnesium","source_url":"https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient","registry_name":"NIH ODS","identifier":"magnesium","receipt_label":"NIH ODS — Magnesium fact sheet"},{"source":"pubmed_magnesium","source_url":"https://pubmed.ncbi.nlm.nih.gov/?term=magnesium+glycinate+supplementation","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient"},{"source":"nih_ods_manganese","source_url":"https://ods.od.nih.gov/factsheets/Manganese-HealthProfessional/","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient","registry_name":"NIH ODS","identifier":"manganese","receipt_label":"NIH ODS · manganese fact sheet"},{"source":"pubmed_manganese","source_url":"https://pubmed.ncbi.nlm.nih.gov/?term=%22manganese%22","observed_at":"2026-07-25","identity_basis":"named_ingredient","scope":"ingredient"}],"observed_at":"2026-07-25","content_fingerprint":"sha256:2312047dc39575d8cfbe0cbc5cd60fcfd78d29b9511d2ad8f1fa331eae2fc4a0","evidence_url":"https://lookcloser.ai/e/ev-d4c10e1677bb"},{"evidence_id":"ev-fa4e78114587","record_id":"lc-8fa13925","gtin":null,"claim_key":"claim:testing","primary_source":"source_listing","claim":"“FARM GROWN SINCE 1984 FOR YOUR WELLBEING Third Party Tested. 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