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SILICA, CRYSTALLINE (QUARTZ)


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Health concerns of ingredient
About the ratings
Canceryes
Developmental & reproductive toxicity no information
Allergies & immunotoxicityyes
Other HIGH concerns: Persistence and bioaccumulation, Enhanced skin absorption
Other MODERATE concerns: Organ system toxicity (non-reproductive), Biochemical or cellular level changes
Other LOW concerns: Data gaps

About the ratings

EWG provides information on personal care product ingredients from the published scientific literature, to supplement incomplete data available from companies and the government. The ratings below indicate the relative level of concern posed by exposure to the ingredients in this product - not the product itself - compared to other product formulations. The ratings reflect potential health hazards but do not account for the level of exposure or individual susceptibility, factors which determine actual health risks, if any. Learn more | Legal Disclaimer

About SILICA, CRYSTALLINE (QUARTZ): Quartz is a mineral and the most common form of silicon dioxide or crystalline silica. Respiratory exposure to large quantities of crystalline silica in the work-place setting has been associated with ... read more

Synonym(s): QUARTZ, ROSE QUARTZ POWDER; QUARTZ PARTICLES; QUARTZ (SIO2) ; MICRONIZED ROSE QUARTZ; AGATE; ALPHA-QUARTZ; AMETHYST; CHALCEDONY; CHERTS; CRYSTALLINE SILICA; CRYSTALLIZED SILICON DIOXIDE

Cancer

Type of Concern Reference
Known human carcinogenInt'l Agency for Research on Cancer (IARC) - Carcinogens
Possible human carcinogenAmer Conf of Gov't Industrial Hygienists - Carcinogens
Possible human carcinogenNational Library of Medicine HazMap
Cancer - strong evidence
Cancer - moderate evidence - EsophagealCHE Toxicant and Disease Database
Possible carcinogenEnvironment Canada Domestic Substance List
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Allergies/immunotoxicity

Type of Concern Reference
Human immune system toxicant - strong evidenceCHE Toxicant and Disease Database
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Persistence and bioaccumulation

Type of Concern Reference
Persistent, bioaccumulative in wildlife and humansNational Library of Medicine HazMap
Persistent, bioaccumulative in wildlifeNational Library of Medicine HazMap
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Organ system toxicity (non-reproductive)

Type of Concern Reference
Known human respiratory toxicantCHE Toxicant and Disease Database
Classified as a high human health priorityEnvironment Canada Domestic Substance List
Possible human respiratory toxicantCHE Toxicant and Disease Database
Classified as expected to be toxic or harmfulEnvironment Canada Domestic Substance List
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Biochemical or cellular level changes

Type of Concern Reference
Cancer - strong evidence - immune systemCHE Toxicant and Disease Database

Ecotoxicology

Type of Concern Reference
Not suspected to be an environmental toxinEnvironment Canada Domestic Substance List

Data gaps

Type of Concern Reference
Not assessed for safety in cosmetics by industry panel

Enhanced skin absorption

Type of Concern Reference
Nano-scale ingredients with potential to absorb into the skinNanomaterial Database

Government, industry, academic studies and classifications

government/industry list/academic study appears on list as classification(s)

references

government/industry list/academic study reference
Amer Conf of Gov't Industrial Hygienists - CarcinogensACGIH (American Conference of Governmental Industrial Hygienists) 2008. ACGIH cancer classification system. www.acgih.org.
CHE Toxicant and Disease DatabaseCHE (The Collaborative on Health and the Environment). 2006. Toxicant and Disease Database.
Environment Canada Domestic Substance ListEC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
National Library of Medicine HazMapNLM (National Library of Medicine). 2006. HazMap — Occupational Exposure to Hazardous Agents.
Int'l Agency for Research on Cancer (IARC) - CarcinogensIARC (International Agency for Research on Cancer). 2008. Overall Evaluations of Carcinogenicity to Humans, as evaluated in IARC Monographs Volumes 1-99 (a total of 935 agents, mixtures and exposures).
Nanomaterial DatabaseNanoWerk. 2007. Nanomaterial Database. Available online: http://www.nanowerk.com/phpscripts/n_dbsearch.php

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