Find products and ingredients Learn how Skin Deep® works Meet our experts Discover EWG VERIFIED™

Data: Limited

Steareth 21

  • Products with the EWG VERIFIED mark have met the program’s impurity and use restrictions based on EWG's review of the company's data.

IMAGE SOURCE: PubChem

SEARCH PRODUCTS

Other Concerns

Use restrictions (low), Non-reproductive organ system toxicity (low), and Contamination concerns (high)

SYNONYMS

PEG-21 STEARYL ETHER, POLYETHYLENE GLYCOL (21) STEARYL ETHER, POLYOXYETHYLENE (21) STEARYL ETHER, and STEARETH-21

Restricted

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


Steareth-21 is a surfactant composed of polyethylene glycol polymer and stearyl alcohol.

Common concerns

See how this product scores for common concerns.

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

Ingredient concerns

  • CONCERNS
  • DATA SOURCES

Products with this Ingredient

Expand content Collapse content
moisturizer61 products
daily use with SPF61 products
hair color and bleaching34 products
facial moisturizer/treatment33 products
mascara23 products
brow liner16 products
body firming lotion15 products
mask14 products
hand cream14 products
hair styling aide14 products
facial cleanser8 products
around-eye cream8 products
foundation8 products
styling gel/lotion7 products
recreational sunscreen6 products
foot moisturizer5 products
exfoliant/scrub5 products
serums & essences4 products
eye liner4 products
hair treatment/serum3 products
antiperspirant/deodorant3 products
anti-aging3 products
foot odor control3 products
after shave3 products
bronzer/highlighter2 products
BB cream2 products
sunless tanning1 products
shampoo1 products
damaged skin treatment1 products
makeup primer1 products
foot cleansing1 products
beard care1 products
glitter1 products
toners/astringents1 products
antiperspirant/deodorant (men's)1 products
skin fading/lightener1 products
lip balm1 products
muscle/joint soreness1 products

Contamination concerns

Expand content Collapse content

Organ system toxicity (non-reproductive)

Expand content Collapse content
CONCERN REFERENCE
Limited evidence of sense organ toxicityScorecard.org Toxicity Information
Classified as not expected to be potentially toxic or harmfulEnvironment Canada Domestic Substance List

Use restrictions

Expand content Collapse content
CONCERN REFERENCE
Determined safe for use in cosmetics, subject to concentration or use limitations - Safe for use in cosmetics with some qualificationsCosmetic Ingredient Review Assessments

Ecotoxicology

Expand content Collapse content
CONCERN REFERENCE
Suspected to be an environmental toxinEnvironment Canada Domestic Substance List

Data gaps

Expand content Collapse content
CONCERN REFERENCE
38 studies in PubMed science library may include information on the toxicity of this chemicalNLM PubMed

Multiple, additive exposure sources

Expand content Collapse content
CONCERN REFERENCE
Designated as safe for general or specific, limited use in foodFDA Food Additive Status

Persistence and bioaccumulation

Expand content Collapse content
CONCERN REFERENCE
Not suspected to be persistentEnvironment Canada Domestic Substance List
Not suspected to be bioaccumulativeEnvironment Canada Domestic Substance List
  • ED (Environmental Defense). 2006. Scorecard _ The Pollution Information Site. http://www.scorecard.org.
  • EC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.
  • CIR (Cosmetic Ingredient Review). 2006. CIR Compendium, containing abstracts, discussions, and conclusions of CIR cosmetic ingredient safety assessments. Washington DC.
  • NLM (National Library of Medicine). 2012. PubMed online scientific bibliography data. http://www.pubmed.gov.
  • 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.

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

Can’t find your product?

Enter the ingredients in EWG’s Build Your Own Report tool to get an approximate score for that product.

BUILD YOUR OWN REPORT

EWG VERIFIED™
Holiday Gift Set

Get Yours with a Donation of $125

ORDER NOW