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Data: Good

Zinc Sulfate

  • This ingredient’s score is higher if used in products intended for use around the eyes due to increased risk of absorption.
  • This ingredient’s score is higher if used in products that are inhalable (e.g., sprays, powders) because of respiratory concerns.
  • This ingredient’s score is higher if used in products intended for use around mouth due to increased risk of ingestion and absorption.
  • This ingredient’s score is higher if used in products intended for use on lips due to increased risk of ingestion and absorption.
  • Products with the EWG VERIFIED mark have met use restrictions and warnings based on EWG review of company data.

IMAGE SOURCE: PubChem

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Other Concerns

Use restrictions (high), Persistence and bioaccumulation (moderate), Non-reproductive organ system toxicity (moderate), Ecotoxicology (low), and Occupational hazards (high)

SYNONYMS

SULFURIC ACID, ZINC SALT, SULFURIC ACID, ZINC SALT (1:1), SULFURIC ACID, ZINC SALT (1:1); ZINC SULFATE, ZINC SALT SULFURIC ACID, ZINC SULFATE, and ZINC SULPHATE

Restricted

Restricted: EWG VERIFIED products cannot contain this ingredient without adequate substantiation


Zinc Sulfate is an inorganic salt.

Common concerns

See how this product scores for common concerns.

  • LOW
    Cancer
  • LOW
    Allergies & Immunotoxicity
  • LOW
    Developmental and Reproductive Toxicity
  • HIGH
    Use Restrictions

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

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liquid hand soap29 products
nail polish26 products
conditioner12 products
shampoo11 products
facial moisturizer/treatment5 products
serums & essences4 products
exfoliant/scrub3 products
facial cleanser3 products
toners/astringents3 products
hair treatment/serum2 products
mask2 products
daily use with SPF2 products
around-eye cream1 products
hair-loss treatment1 products
bar soap1 products
moisturizer1 products
body wash/cleanser1 products
anti-aging1 products

Use restrictions

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CONCERN REFERENCE
Violation of government restrictions - Restricted in cosmetics; use, concentration, or manufacturing restrictions - anyOpen scientific literature
Restricted in cosmetics (recommendations or requirements) - use, concentration, or manufacturing restrictions - anyCosIng
Determined safe for use in cosmetics, subject to concentration or use limitations - anyOpen scientific literature

Occupational hazards

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CONCERN REFERENCE
Allowed workplace exposures restricted to low dosesCPS&Q - Classification & Labelling

Persistence and bioaccumulation

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CONCERN REFERENCE
Persistent or bioaccumulative and moderate to high toxicity concern in humansEnvironment Canada Domestic Substance List
Persistent, bioaccumulative in wildlifeCanada PBTs - Accelerated Reduction/Elimination of Toxics (ARET)
Not suspected to be bioaccumulativeEnvironment Canada Domestic Substance List

Organ system toxicity (non-reproductive)

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CONCERN REFERENCE
Limited evidence of eye toxicityCPS&Q - Classification & Labelling
Classified as expected to be toxic or harmfulEnvironment Canada Domestic Substance List
Classified as toxic or harmfulCPS&Q - Classification & Labelling
Limited evidence of any toxicityScorecard.org Toxicity Information
One or more animal studies show classified as toxic effects at moderate doses (low dose studies may be unavailable for this ingredient)EPA Toxic Release Inventory PBTs
Classified as a low human health priorityEnvironment Canada Domestic Substance List

Developmental/reproductive toxicity

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CONCERN REFERENCE
Limited evidence of developmental toxicityScorecard.org Toxicity Information

Ecotoxicology

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CONCERN REFERENCE
Suspected to be an environmental toxin and be persistent or bioaccumulativeEnvironment Canada Domestic Substance List
Wildlife and environmental toxicityCPS&Q - Classification & Labelling
Suspected to be an environmental toxinEnvironment Canada Domestic Substance List

Multiple, additive exposure sources

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CONCERN REFERENCE
Designated as safe for general or specific, limited use in foodFDA Everything Added to Food
Designated as safe for general or specific, limited use in foodFDA Food Additive Status

Data gaps

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CONCERN REFERENCE
2573 studies in PubMed science library may include information on the toxicity of this chemicalNLM PubMed
  • Open scientific/peer reviewed literature
  • European Commission. 2013. Cosing, the European Commission database with information on cosmetic substances and ingredients. Accessed on March 1, 2013 at http://ec.europa.eu/consumers/cosmetics/cosing/ .
  • CPS&Q (Consumer Products Safety & Quality) formely known as ECB (European Chemicals Bureau). 2008. Classification and Labelling: Chemicals: Annex VI of Directive 67/548/EEC through the 31st ATP.
  • EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
  • EC (Environment Canada). 1994. Accelerated Reduction/Elimination of Toxics (ARET). ARET substance list of persistent, bioaccumulative and toxic chemicals.
  • ED (Environmental Defense). 2006. Scorecard _ The Pollution Information Site. http://www.scorecard.org.
  • EPA (U.S. Environmental Protection Agency). 1999. Toxics Release Inventory Program. PBT Chemical Rule.
  • FDA (U.S. Food and Drug Administration). 2008. EAFUS [Everything Added to Food]: A Food Additive Database. FDA Office of Food Safety and Applied Nutrition.
  • FDA (U.S. Food and Drug Administration) 2006. Food Additive Status List. Downloaded from http://www.cfsan.fda.gov/%7Edms/opa-appa.html, Oct 16, 2006.
  • NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.

Understanding scores

Cosmetics and personal care products are not required to be tested for safety before being allowed on the market. The Skin Deep® scoring system was designed to help the public understand whether a product is safe to use or whether it contains ingredients of concern.

Every product and ingredient in Skin Deep gets a two-part score – one for hazard and one for data availability. The safest products score well by both measures, with a low hazard rating and a fair or better data availability rating.

HOW WE DETERMINE SCORES

Hazard score

The Skin Deep ingredient hazard score, from 1 to 10, reflects known and suspected hazards linked to the ingredients. The EWG VERIFIED™ mark means a product meets EWG’s strictest criteria for transparency and health.

Score legend

Data availability

The Skin Deep data availability rating reflects the number of scientific studies about the product or ingredient in the published scientific literature.

NONE LIMITED FAIR GOOD ROBUST
Low Availability
Moderate Availability
High Availability

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