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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.","proof":"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.","identity_basis":"listing","status":"live","source_refs":["keepa_history","source_listing"],"source_url":"https://keepa.com/#!product/1-B0C88BJYX2","scope":"exact_listing","inference_level":"gap","observed_at":"2026-07-24","presentation_tone":"gap","evidence_id":"ev-1ada4f0cfc71","evidence_url":"https://lookcloser.ai/e/ev-1ada4f0cfc71","content_fingerprint":"sha256:b92795072a7ec51d23658a37dd7c8ef81132a8ca9010e9938d777b2dbd2bfa29","registry_receipts":[],"evidence":{"summary":"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":["keepa_history","source_listing"],"source_records":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-24","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."},"html_anchor":"finding-keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","report_url":"https://lookcloser.ai/p/lc-c0828987/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 1,545 on 2026-01-31 to 1,993 on 2026-07-22 (net +448). 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 1,545 on 2026-01-31 to 1,993 on 2026-07-22 (net +448). 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-B0C88BJYX2","scope":"exact_listing","inference_level":"gap","observed_at":"2026-07-24","presentation_tone":"gap","evidence_id":"ev-dc49431049cf","evidence_url":"https://lookcloser.ai/e/ev-dc49431049cf","content_fingerprint":"sha256:8f1a57ad1be4413f861d8ea26c4ff225c233c3a96ab742ce394ab4dc931d83fb","registry_receipts":[],"evidence":{"summary":"Exact-listing history records written-review counts from 1,545 on 2026-01-31 to 1,993 on 2026-07-22 (net +448). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.","source_refs":["keepa_history","source_listing"],"source_records":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-24","looked":"LookCloser checked Keepa exact-listing history.","found":"Exact-listing history records written-review counts from 1,545 on 2026-01-31 to 1,993 on 2026-07-22 (net +448). 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-c0828987/full#finding-keepa-exact-listing-history-180-day-review-count-history-is-on-file"},{"id":"uspto-trademark-registry-package-and-trademark-records-name-different-re","source":"USPTO trademark registry","class":"gap","severity":"info","weight":14,"headline":"Package and trademark records name different responsible entities","detail":"The package says manufactured for: Nature Bell, 4380 Mission Blvd, Montclair, CA 91763. USPTO names Nature Bell, Inc. as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing relationship; the retained records do not establish the relationship.","proof":"The package says manufactured for: Nature Bell, 4380 Mission Blvd, Montclair, CA 91763. USPTO names Nature Bell, Inc. as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing relationship; the retained records do not establish the relationship.","identity_basis":"owner_exact","status":"live","source_refs":["uspto_search","facts_panel"],"source_url":"https://tsdr.uspto.gov/#caseNumber=88315012&caseSearchType=US_APPLICATION&caseType=DEFAULT&searchType=statusSearch","scope":"brand_owner","inference_level":"gap","observed_at":"2026-07-24","presentation_tone":"gap","evidence_id":"ev-282099e9f0fb","evidence_url":"https://lookcloser.ai/e/ev-282099e9f0fb","content_fingerprint":"sha256:cd2cc58a38645025080b1f414d848b441ecda0a42ce06ffbc5dc7afcf2aa655d","registry_receipts":[{"source":"uspto_search","url":"https://tsdr.uspto.gov/#caseNumber=88315012&caseSearchType=US_APPLICATION&caseType=DEFAULT&searchType=statusSearch","label":"USPTO · Registration 5845207","registry_name":"USPTO","standard":null,"identifier":"Registration 5845207"}],"evidence":{"summary":"The package says manufactured for: Nature Bell, 4380 Mission Blvd, Montclair, CA 91763. USPTO names Nature Bell, Inc. as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing relationship; the retained records do not establish the relationship.","source_refs":["uspto_search","facts_panel"],"source_records":[{"source":"uspto_search","source_url":"https://tsdr.uspto.gov/#caseNumber=88315012&caseSearchType=US_APPLICATION&caseType=DEFAULT&searchType=statusSearch","observed_at":"2026-07-24","identity_basis":"exact_wordmark_and_supplement_goods","scope":"brand","registry_name":"USPTO","identifier":"Registration 5845207","receipt_label":"USPTO · Registration 5845207"},{"source":"facts_panel","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-24","looked":"LookCloser checked USPTO trademark registry.","found":"The package says manufactured for: Nature Bell, 4380 Mission Blvd, Montclair, CA 91763. USPTO names Nature Bell, Inc. as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing relationship; the retained records do not establish the relationship."},"html_anchor":"finding-uspto-trademark-registry-package-and-trademark-records-name-different-re","report_url":"https://lookcloser.ai/p/lc-c0828987/full#finding-uspto-trademark-registry-package-and-trademark-records-name-different-re"}],"evidence_records":[{"evidence_id":"ev-5b374b45df7b","record_id":"lc-c0828987","gtin":null,"claim_key":"finding:label-and-serving-arithmetic-multi-ingredient-formula-panel-read-serving","primary_source":"facts_panel","claim":"Multi-ingredient formula — panel read, serving weight unknown","bucket":"unverified","looked":"LookCloser checked Label and serving arithmetic.","found":"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.","proof":{"detail":"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."},"source_refs":[{"source":"facts_panel","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:d228497992df3850573c13b8373bbf5e2e54470021f6a2fcdc11ee20f8d5558c","evidence_url":"https://lookcloser.ai/e/ev-5b374b45df7b"},{"evidence_id":"ev-32af3366b74d","record_id":"lc-c0828987","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":"2026-07-24","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":"2026-07-24","identity_basis":"named_ingredient","scope":"ingredient"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:4c56490bec8a4e80e664692302024937ea6ad1bc303573253bf4ed2bd1959d12","evidence_url":"https://lookcloser.ai/e/ev-32af3366b74d"},{"evidence_id":"ev-cee280b4ccc7","record_id":"lc-c0828987","gtin":null,"claim_key":"finding:nih-published-research-each-ingredient-s-amount-is-disclosed","primary_source":"nih_ods_magnesium","claim":"Each ingredient’s amount is disclosed","bucket":"checks_out","looked":"LookCloser checked NIH / published research.","found":"The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.","proof":{"detail":"The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research."},"source_refs":[{"source":"nih_ods_magnesium","source_url":"https://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/","observed_at":"2026-07-24","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":"2026-07-24","identity_basis":"named_ingredient","scope":"ingredient"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:60844b47ee1855141486e47c168a0a150853ee6a981e7844eeaf02b6dcd6147b","evidence_url":"https://lookcloser.ai/e/ev-cee280b4ccc7"},{"evidence_id":"ev-f9710a45cabc","record_id":"lc-c0828987","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 Nature Bell, Inc. (CORPORATION) in CALIFORNIA, 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 Nature Bell, Inc. (CORPORATION) in CALIFORNIA, 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=88315012&caseSearchType=US_APPLICATION&caseType=DEFAULT&searchType=statusSearch","observed_at":"2026-07-24","identity_basis":"exact_wordmark_and_supplement_goods","scope":"brand","registry_name":"USPTO","identifier":"Registration 5845207","receipt_label":"USPTO · Registration 5845207"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:71b8470b16e6401db222027f987b19c64b0511f374a8eecbf197a5bf30697036","evidence_url":"https://lookcloser.ai/e/ev-f9710a45cabc"},{"evidence_id":"ev-282099e9f0fb","record_id":"lc-c0828987","gtin":null,"claim_key":"finding:uspto-trademark-registry-package-and-trademark-records-name-different-re","primary_source":"uspto_search","claim":"Package and trademark records name different responsible entities","bucket":"unverified","looked":"LookCloser checked USPTO trademark registry.","found":"The package says manufactured for: Nature Bell, 4380 Mission Blvd, Montclair, CA 91763. USPTO names Nature Bell, Inc. as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing relationship; the retained records do not establish the relationship.","proof":{"detail":"The package says manufactured for: Nature Bell, 4380 Mission Blvd, Montclair, CA 91763. USPTO names Nature Bell, Inc. as the exact wordmark owner. That can be a normal distributor, manufacturer, or licensing relationship; the retained records do not establish the relationship."},"source_refs":[{"source":"uspto_search","source_url":"https://tsdr.uspto.gov/#caseNumber=88315012&caseSearchType=US_APPLICATION&caseType=DEFAULT&searchType=statusSearch","observed_at":"2026-07-24","identity_basis":"exact_wordmark_and_supplement_goods","scope":"brand","registry_name":"USPTO","identifier":"Registration 5845207","receipt_label":"USPTO · Registration 5845207"},{"source":"facts_panel","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:cd2cc58a38645025080b1f414d848b441ecda0a42ce06ffbc5dc7afcf2aa655d","evidence_url":"https://lookcloser.ai/e/ev-282099e9f0fb"},{"evidence_id":"ev-dbf1328ff332","record_id":"lc-c0828987","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 and a related brand product page both claim third-party testing. Neither names the laboratory or links a product- or lot-specific report. The related page does not publish this record's UPC. Repeating the claim across two pages confirms the brand publishes it, not that testing occurred. NSF, IFOS, USP, and Informed-Sport were not checked in this record.","proof":{"detail":"The observed listing and a related brand product page both claim third-party testing. Neither names the laboratory or links a product- or lot-specific report. The related page does not publish this record's UPC. Repeating the claim across two pages confirms the brand publishes it, not that testing occurred. NSF, IFOS, USP, and Informed-Sport were not checked in this record."},"source_refs":[{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"brand_store","source_url":"https://www.NatureBellUSA.com/products/magnesium-glycinate-500mg-240-veggie-capsules","observed_at":"2026-07-24","identity_basis":"product_anchor_candidate","scope":"brand_or_exact_product"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:702d65b82c664087077df6ef01bd96f0a8db5b274efa0ea1cf675de6071f24cb","evidence_url":"https://lookcloser.ai/e/ev-dbf1328ff332"},{"evidence_id":"ev-dc49431049cf","record_id":"lc-c0828987","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 1,545 on 2026-01-31 to 1,993 on 2026-07-22 (net +448). 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 1,545 on 2026-01-31 to 1,993 on 2026-07-22 (net +448). 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-B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:8f1a57ad1be4413f861d8ea26c4ff225c233c3a96ab742ce394ab4dc931d83fb","evidence_url":"https://lookcloser.ai/e/ev-dc49431049cf"},{"evidence_id":"ev-1ada4f0cfc71","record_id":"lc-c0828987","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-B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:b92795072a7ec51d23658a37dd7c8ef81132a8ca9010e9938d777b2dbd2bfa29","evidence_url":"https://lookcloser.ai/e/ev-1ada4f0cfc71"},{"evidence_id":"ev-e64011e5f824","record_id":"lc-c0828987","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 1552 to 1993 across 2026-02-03 – 2026-07-22 with no single manufactured spike (largest 30-day gain ~100).","proof":{"first":["2026-02-03",1552],"last":["2026-07-22",1993],"max_30d_review_gain":100},"source_refs":[{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:68a5f2fa491794973782d8018aba48a955adc73d9437be6ecfbe7fc53ef26aff","evidence_url":"https://lookcloser.ai/e/ev-e64011e5f824"},{"evidence_id":"ev-726be003ce03","record_id":"lc-c0828987","gtin":null,"claim_key":"claim:testing","primary_source":"source_listing","claim":"“Capsules | 100% Chelated & Purified – 3rd Party Tested, Vegan Friendly, Non-GMO, Filler Free Pure”","bucket":"unverified","looked":"the observed listing, retained brand product page, any linked COA or test report; NSF, IFOS, USP, Informed-Sport were not queried","found":"No named laboratory or lot-specific certificate was found for this exact product. A related brand page repeats a testing claim but names no issuer; 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.","proof":{"kind":"testing","status":"unverified","snippet":"…Veggie Capsules | 100% Chelated & Purified – 3rd Party Tested, Vegan Friendly, Non-GMO, Filler Free Pure M…"},"source_refs":[{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0C88BJYX2","observed_at":"2026-07-24","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"brand_store","source_url":"https://www.NatureBellUSA.com/products/magnesium-glycinate-500mg-240-veggie-capsules","observed_at":"2026-07-24","identity_basis":"product_anchor_candidate","scope":"brand_or_exact_product"}],"observed_at":"2026-07-24","content_fingerprint":"sha256:90fd62524276fc5a482d2bb587b60f549601d3764d3f92c8d7ccc9361ac44243","evidence_url":"https://lookcloser.ai/e/ev-726be003ce03"}],"label_math":{"verdict":"UNKNOWN","claimed_subject":null,"claimed_mg":null,"serving_mass_mg":null,"percent_of_serving":null,"serving_mass_source":null,"ambiguity":null,"declared_actives_total_mg":500,"headline_claim_mg":90,"headline_subject":"magnesium","subject_actual_mg":90},"listing_claims":{"dose_claims":[{"subject":"magnesium","amount_mg":90,"basis":"unspecified"}],"testing":{"claimed":true,"named_lab_or_certifier":false},"container":{"units":null,"servings":null,"pack_count":1,"units_conflict":false},"marketing_text":["pure","fat-soluble","+ Daily Value not established.","FREE OF: Wheat, gluten, soy, dairy & tree nuts.","Different Look","Same High Quality","superior absorption","OLD LOOK","NEW LOOK","2-in-1 Pure Magnesium Glycinate 500mg Per Serving"],"certification_text":["Double Sealed","UV Protected Amber Bottle","Third-Party USA Lab Tested","LAB TESTED","cGMP","GMO FREE"],"claim_checks":[{"kind":"testing","label":"Quality-testing claim","snippet":"…Veggie Capsules | 100% Chelated & Purified – 3rd Party Tested, Vegan Friendly, Non-GMO, Filler Free Pure M…","looked":"the observed listing, retained brand product page, any linked COA or test report; NSF, IFOS, USP, Informed-Sport were not queried","found":"No named laboratory or lot-specific certificate was found for this exact product. A related brand page repeats a testing claim but names no issuer; its UPC is not published. NSF, IFOS, USP, and Informed-Sport were not checked in this record. 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