Health Canada 2012 - Heavy metal impurities in cosmetics

Health Canada issued this guidance to communicate technically avoidable impurity limits for lead, arsenic, cadmium, mercury, and antimony in cosmetics sold in Canada. The PDF is a regulatory guidance document, not a market-sampling paper: it states policy limits and toxicological context but does not print the underlying Health Canada laboratory dataset. This page records the source-stated limits as Canadian regulatory context, with total arsenic and total mercury kept distinct from inorganic arsenic and methylmercury occurrence.

Key numbers

• Document identity: Guidance on Heavy Metal Impurities in Cosmetics, effective date 2012-07-20, date modified 2016-02-29.
• Scope: the guidance focuses on heavy metals with known significant toxicological properties in cosmetics: lead, arsenic, cadmium, mercury, and antimony.
• Unit definitions in the source: 1 ppb = 1 µg/kg = 1 µg/L; 1 ppm = 1µg/g, 1 mg/kg, 1 mg/L.
• Health Canada policy limits for cosmetic-product impurities: lead 10 ppm; arsenic 3 ppm; cadmium 3 ppm; mercury 1 ppm; antimony 5 ppm.
• Health Canada enforcement framing: heavy metal impurity concentrations above those limits are considered technically avoidable; occurrences above the limits are evaluated case by case for risk and enforcement action.
• German technical-avoidability comparator for cosmetic products: lead 20 ppm; arsenic 5 ppm; cadmium 5 ppm; mercury 1 ppm; antimony 10 ppm.
• German toothpaste comparator: lead 1 ppm; arsenic 0.5 ppm; cadmium 0.1 ppm; mercury 0.2 ppm; antimony 0.5 ppm.
• Source-side exposure context: dermal exposure is expected to be the most significant route for most cosmetics, oral exposure can occur for products used in and around the mouth or through hand-to-mouth contact, and inhalation exposure is expected to be negligible.
• Source-side metal context: children absorb about 50% of ingested lead; one arsenic dermal-exposure study predicted dermal exposure may contribute less than 1% of exposure from ingestion; cadmium absorption through skin is described as low (0.5%); organic methylmercury is described as a greater concern than inorganic mercury, but the cosmetic impurity limit is stated for mercury generally.
• Comparator values cited by the guidance: Canadian drinking-water MACs are 0.010 mg/L (0.010 ppm) for lead, 0.01 mg/L (0.01 ppm) for arsenic, 0.005 mg/L (0.005 ppm) for cadmium, 0.001 mg/L (0.001 ppm) for mercury, and 0.006 mg/L (0.006 ppm) for antimony. The US FDA limit for arsenic in certain colorants is <3 ppm; the US FDA limit for mercury impurities in some colourants is <1 ppm.
• Mercury footnote: the source says the cosmetic impurity limit for mercury was amended from 3 ppm to 1 ppm as per the Minamata Convention on Mercury signed by Canada on October 10, 2013.

Methods (brief)

This is a Health Canada guidance document. It summarizes toxicological properties, exposure-route considerations, comparator limits from Canada, Germany, the United States, WHO, and other program areas, and Health Canada’s policy position under the Food and Drugs Act and Cosmetic Regulations. The guidance says Health Canada reviewed and analysed Product Safety Laboratory heavy-metal testing results from a number of cosmetics sold in Canada, but it does not report sample counts, product categories, concentration distributions, analytical methods, LOD/LOQ values, or QA/QC details for those tests.

Speciation: the policy limits are for lead, arsenic, cadmium, mercury, and antimony as cosmetic impurities. This page records arsenic as tAs and mercury as tHg context because the guidance does not specify inorganic arsenic or methylmercury limits for cosmetics.

Implications

Certification (HMTc): This is A-tier Canadian regulatory context for cosmetic heavy-metal impurity policy. It should not be pooled as occurrence evidence because the source does not print the underlying Health Canada sample results. It can support regulatory crosswalk discussion where Canadian cosmetic impurity limits are needed, with the limits explicitly attributed to Health Canada.

Courses: The source is useful for teaching the difference between technical-avoidability limits, toxicology-derived intake comparators, and measured occurrence datasets. It also gives a clear example of why unspecified arsenic and mercury limits should not be promoted to inorganic arsenic or methylmercury.

App: The source can support a Canada cosmetic-regulatory-context card for lead, arsenic, cadmium, mercury, and antimony impurities. It should not be used for brand ranking or product-category occurrence claims.

Wiki pages this source may touch

• lead
• arsenic-total
• cadmium
• mercury-total
• antimony

Verification notes

• PDF text was extracted with pdftotext -layout to /tmp/mfk_june8_paper18_unknown.txt. The title page, definitions, heavy-metals background, German comparator limits, Health Canada policy statement, effective date, references, and mercury footnote were checked against this page.
• No DOI is printed in the extracted guidance. Identity checks before creation found no existing source page for the exact title, URL slug heavy_metals-metaux_lourds, raw handle MFK_paper-18-unknown, or candidate cite key healthcanada2012-cosmetics-heavy-metal-impurities.
• Numbers are copied in the source’s own units (ppm, ppb, µg/kg, µg/L, mg/kg, mg/L) and were not converted.
• Speciation: the guidance discusses inorganic arsenic and methylmercury in toxicological context, but the cosmetic impurity policy limits are stated for arsenic and mercury generally. This page uses tAs and tHg for routing context and does not treat the limits as iAs or MeHg occurrence.
• Brand firewall: no brand names or brand-linked contamination values are reported in the guidance.
• Evidence tier: A because this is official Health Canada guidance; it is context-only because no primary occurrence table or analyte-by-product dataset is printed.
• Routing: the taxonomy snapshot has metal slugs for lead, arsenic-total, cadmium, mercury-total, and antimony, but no broad all-cosmetics product slug. products is left empty rather than inventing a destination or over-specifying many cosmetic subcategories. npm run evidence:source-routes exited 0, generated no product routing rows for this context-only source, left the source absent from routing_unresolved.csv, and recorded only the expected nonblocking products;ingredients advisory in routing_malformed.csv.

Page history

The five most recent substantive edits to this page. The full version history lives in git; when DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.