{
  "name": "The Hydroxyapatite Gum Database",
  "description": "Independent comparison of the nine brands selling hydroxyapatite chewing gum in the US, scoring each on what it discloses: hydroxyapatite dose per piece, particle form, ingredient transparency, downloadable lab documents, guarantee terms, and third-party-verifiable review counts. Every cell is sourced. Maintained by Minvelle, which sells one of the products listed.",
  "source_url": "https://www.minvelle.com/pages/hydroxyapatite-gum-database",
  "machine_readable_csv": "https://github.com/oehlusbert/hydroxyapatite-gum-database",
  "last_updated": "2026-07-11",
  "all_cells_checked": "2026-07-11",
  "license": "CC BY 4.0 - publicly citable, including commercially, with attribution",
  "maintained_by": "Minvelle (sells one of the products compared; own row is sourced like every other)",
  "notes": {
    "note_1": "Nano and non-nano hydroxyapatite are different materials in practice. Nano particles are far smaller, so a milligram of nano-HAp contains vastly more particles than a milligram of non-nano HAp. Milligram figures across nano and non-nano products are not directly comparable.",
    "note_2": "Compiled July 2026 from each brand's own website. Every cell was checked on 11 July 2026."
  },
  "columns": {
    "disclosure": [
      "Brand",
      "HAp per piece",
      "Form & particle data",
      "Full ingredient list",
      "Lab report public",
      "Studies cited on site",
      "Money-back guarantee",
      "Source"
    ],
    "verifiability_scorecard": [
      "Brand",
      "Dose disclosed",
      "Documents you can download",
      "Guarantee in writing",
      "Review count verifiable on a third-party platform",
      "Source"
    ]
  },
  "brands": [
    {
      "brand": "Minvelle",
      "disclosure": {
        "hap_per_piece": "5.7 mg nano-HAp | 0.30% of a 1.9 g piece",
        "form_and_particle_data": "Nano, 200 nm (supplier-stated) | disclosed: sits above the EU’s <100 nm nanomaterial definition",
        "full_ingredient_list": "Yes | all 14, with per-piece weights",
        "lab_report_public": "Yes | MSDS + batch CoA published (manufacturer redacted, disclosed)",
        "studies_cited_on_site": "Partial | pH study sourced; history claims being back-referenced",
        "money_back_guarantee": "30 days",
        "source": "transparency page",
        "source_urls": [
          "/pages/transparency"
        ]
      },
      "verifiability_scorecard": {
        "dose_disclosed": "Yes | 5.7 mg nano per piece",
        "documents_downloadable": "2 | MSDS + batch CoA (PDF)",
        "guarantee_in_writing": "Yes | 30-day, unopened boxes",
        "review_count_verifiable_third_party": "No | Trustpilot profile claimed, shows 0 reviews so far",
        "source": "transparency page | checked 2026-07-11",
        "source_urls": [
          "/pages/transparency"
        ]
      }
    },
    {
      "brand": "Crait",
      "disclosure": {
        "hap_per_piece": "70 mg non-nano HAp (gum) | separate mints state 25 mg; see note 1 before comparing",
        "form_and_particle_data": "Non-nano (OMYADENT®) | described as larger, surface-acting particles",
        "full_ingredient_list": "Yes | 9 ingredients, no amounts",
        "lab_report_public": "No",
        "studies_cited_on_site": "No | \"studies show\" without citations",
        "money_back_guarantee": "not disclosed",
        "source": "craitgoods.com | checked 2026-07-11",
        "source_urls": [
          "https://www.craitgoods.com/products/p/hydroxyapatite-gum"
        ]
      },
      "verifiability_scorecard": {
        "dose_disclosed": "Yes | 70 mg gum / 25 mg mints",
        "documents_downloadable": "0",
        "guarantee_in_writing": "not found (checked 2026-07-11)",
        "review_count_verifiable_third_party": "Yes | Amazon listings; exact count not machine-readable",
        "source": "craitgoods.com | checked 2026-07-11",
        "source_urls": [
          "https://www.craitgoods.com/products/p/hydroxyapatite-gum"
        ]
      }
    },
    {
      "brand": "Enamio",
      "disclosure": {
        "hap_per_piece": "not disclosed",
        "form_and_particle_data": "Nano, 20 nm rod-shaped (stated)",
        "full_ingredient_list": "Yes | no amounts",
        "lab_report_public": "No | \"3rd-party tested\" badge, no report",
        "studies_cited_on_site": "Yes | 14 studies linked; specific % claims on FAQ remain uncited",
        "money_back_guarantee": "30 days, first order only",
        "source": "enamiogum.com",
        "source_urls": [
          "https://enamiogum.com/pages/science"
        ]
      },
      "verifiability_scorecard": {
        "dose_disclosed": "not disclosed",
        "documents_downloadable": "0",
        "guarantee_in_writing": "Yes | 30-day, first order only",
        "review_count_verifiable_third_party": "No | on-site widget only",
        "source": "enamiogum.com | checked 2026-07-11",
        "source_urls": [
          "https://enamiogum.com/pages/shipping-returns"
        ]
      }
    },
    {
      "brand": "Underbrush",
      "disclosure": {
        "hap_per_piece": "not disclosed",
        "form_and_particle_data": "Nano | particle size not stated",
        "full_ingredient_list": "Yes | no amounts",
        "lab_report_public": "No",
        "studies_cited_on_site": "Yes | 39 numbered citations",
        "money_back_guarantee": "not disclosed",
        "source": "nathanandsons.com",
        "source_urls": [
          "https://nathanandsons.com/products/remineralizing-gum"
        ]
      },
      "verifiability_scorecard": {
        "dose_disclosed": "not disclosed",
        "documents_downloadable": "0",
        "guarantee_in_writing": "No | gum is final sale; guarantee only via a paid add-on",
        "review_count_verifiable_third_party": "No | on-site widget only",
        "source": "nathanandsons.com | checked 2026-07-11",
        "source_urls": [
          "https://nathanandsons.com/policies/refund-policy"
        ]
      }
    },
    {
      "brand": "Dentagum",
      "disclosure": {
        "hap_per_piece": "not disclosed",
        "form_and_particle_data": "Nano | particle size not stated",
        "full_ingredient_list": "Yes | no amounts",
        "lab_report_public": "Partial | heavy-metal figures shown; report link not retrievable",
        "studies_cited_on_site": "No | \"83% / 91% / 87%\" shown without sources",
        "money_back_guarantee": "30 days claimed on product page; refund policy states 14 days, unopened",
        "source": "dentagum.co",
        "source_urls": [
          "https://dentagum.co/products/remineralizing-chewing-gum"
        ]
      },
      "verifiability_scorecard": {
        "dose_disclosed": "not disclosed",
        "documents_downloadable": "0 | a CoA is shown as an on-page image, not downloadable",
        "guarantee_in_writing": "Conflicting | \"30-day risk-free\" on page; refund policy allows unopened only (EU 14 days)",
        "review_count_verifiable_third_party": "Yes | Amazon: 644 reviews, 4.4★ (site widget claims 733)",
        "source": "dentagum.co · Amazon | checked 2026-07-11",
        "source_urls": [
          "https://dentagum.co/products/remineralizing-chewing-gum",
          "https://www.amazon.com/dp/B0FH77JJ7J"
        ]
      }
    },
    {
      "brand": "CaviChew",
      "disclosure": {
        "hap_per_piece": "not disclosed",
        "form_and_particle_data": "Nano, ≤100 nm rod-shaped (stated)",
        "full_ingredient_list": "Yes | no amounts",
        "lab_report_public": "No",
        "studies_cited_on_site": "No | refers to studies on \"other remineralizing gums\"",
        "money_back_guarantee": "not disclosed",
        "source": "Amazon listing",
        "source_urls": [
          "https://www.amazon.com/dp/B0FXVXP5GW"
        ]
      },
      "verifiability_scorecard": {
        "dose_disclosed": "not disclosed",
        "documents_downloadable": "0",
        "guarantee_in_writing": "not found (checked 2026-07-11)",
        "review_count_verifiable_third_party": "Yes | Amazon: 193 reviews, 4.3★",
        "source": "Amazon listing | checked 2026-07-11",
        "source_urls": [
          "https://www.amazon.com/dp/B0FXVXP5GW"
        ]
      }
    },
    {
      "brand": "VanMan",
      "disclosure": {
        "hap_per_piece": "not disclosed",
        "form_and_particle_data": "Bovine-bone HAp | nano/non-nano not stated",
        "full_ingredient_list": "Yes | 6 ingredients, no amounts",
        "lab_report_public": "No",
        "studies_cited_on_site": "No",
        "money_back_guarantee": "Yes, no time window stated",
        "source": "vanman.shop",
        "source_urls": [
          "https://vanman.shop/products/vanmans-remineralizing-chewing-gum"
        ]
      },
      "verifiability_scorecard": {
        "dose_disclosed": "not disclosed",
        "documents_downloadable": "0",
        "guarantee_in_writing": "Yes | full refund, no time window stated",
        "review_count_verifiable_third_party": "Yes | Amazon: 135 ratings, 3.5★",
        "source": "vanman.shop · Amazon | checked 2026-07-11",
        "source_urls": [
          "https://vanman.shop/policies/refund-policy",
          "https://www.amazon.com/dp/B0FMC8M6QN"
        ]
      }
    },
    {
      "brand": "Weldental",
      "disclosure": {
        "hap_per_piece": "not disclosed",
        "form_and_particle_data": "\"Micro\" HAp | no numeric size given",
        "full_ingredient_list": "Yes | no amounts",
        "lab_report_public": "No",
        "studies_cited_on_site": "No",
        "money_back_guarantee": "Non-returnable on Amazon (food safety); site policy 30 days unused",
        "source": "weldental.com",
        "source_urls": [
          "https://weldental.com/products/micro-hydroxyapatite-gum"
        ]
      },
      "verifiability_scorecard": {
        "dose_disclosed": "not disclosed",
        "documents_downloadable": "0",
        "guarantee_in_writing": "Yes | 30-day, unused only",
        "review_count_verifiable_third_party": "Yes | Amazon: 71 ratings, 4.4★",
        "source": "weldental.com · Amazon | checked 2026-07-11",
        "source_urls": [
          "https://weldental.com/policies/refund-policy",
          "https://www.amazon.com/dp/B0FKTNCQMP"
        ]
      }
    },
    {
      "brand": "RevitaBite",
      "disclosure": {
        "hap_per_piece": "not disclosed",
        "form_and_particle_data": "Nano | particle size not stated; liquid-center, dentist-formulated",
        "full_ingredient_list": "Yes | no amounts; liquid centre marketed as \"proprietary\"",
        "lab_report_public": "No",
        "studies_cited_on_site": "No | dentist-formulated claims, no study citations found",
        "money_back_guarantee": "30 days | money-back, \"no questions\"",
        "source": "chewrevitabite.com | checked 2026-07-11",
        "source_urls": [
          "https://chewrevitabite.com/products/revitabite-oral-care-supplement"
        ]
      },
      "verifiability_scorecard": {
        "dose_disclosed": "not disclosed",
        "documents_downloadable": "0",
        "guarantee_in_writing": "Yes | 30-day money-back, \"no questions\"",
        "review_count_verifiable_third_party": "No | on-site testimonials only",
        "source": "chewrevitabite.com | checked 2026-07-11",
        "source_urls": [
          "https://chewrevitabite.com/products/revitabite-oral-care-supplement"
        ]
      }
    }
  ]
}