Is Isosteareth-25 safe in cosmetics?
Isosteareth-25 has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Isosteareth-25
Also known as: POE isooctadecanol, Polyethylene glycol isooctdecyl ether, Poly(oxy-1,2-ethanediyl), alpha-isooctadecyl-omega-hydroxy-, Poly(oxy-1,2-ethanediyl), .alpha.-isooctadecyl-.omega.-hydroxy-, alpha-Alkyl-omega-hydroxypoly(oxypropylene) and/or poly(oxyethylene) polymers where the alkyl chain contains a minimum of six carbons, minimum number average molecular weight (in amu) 1,100 (+15 more)
INCI: ISOSTEARETH-25
Isosteareth-25 (CAS 52292-17-8) is a cosmetic cosmetic ingredient functioning as Surfactant - Cleansing; Surfactant - Emulsifying. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 52292-17-8 →
Auto-generated CPSR Part A draft with source citations
Function
Surfactant - Cleansing; Surfactant - Emulsifying
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
2-[2-(16-methylheptadecoxy)ethoxy]ethanol
InChIKey
ZITBHNVGLSVXEF-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Allowed - no restrictions; CIR-reviewed as safe in the isosteareth group
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Isosteareth-25.
Calculate MoS for your specific formulation with the MoS Calculator.
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Emulsifier
Surfactant (surface active agent)
Expert Verdict
Expert safety assessment and concern-level summary for Isosteareth-25.
Known Synonyms
POE isooctadecanol
Polyethylene glycol isooctdecyl ether
Poly(oxy-1,2-ethanediyl), alpha-isooctadecyl-omega-hydroxy-
Poly(oxy-1,2-ethanediyl), .alpha.-isooctadecyl-.omega.-hydroxy-
alpha-Alkyl-omega-hydroxypoly(oxypropylene) and/or poly(oxyethylene) polymers where the alkyl chain contains a minimum of six carbons, minimum number average molecular weight (in amu) 1,100
PEG-10 isostearyl ether
PEG-12 isostearyl ether
PEG-2 isostearyl ether
PEG-20 isostearyl ether
PEG-22 isostearyl ether
PEG-3 isostearyl ether
PEG-50 isostearyl ether
UNII-78H2SJ8X8M
UNII-059Z6493VU
UNII-240854JL5W
UNII-3M721D059Q
UNII-73GZ576SED
UNII-O76072HF6C
UNII-P4141H45SH
Isosteareth-10
Chemical Function
Surfactant (surface active agent)
Emulsifier
Regulatory Lists
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
active_ingredient; Pesticides
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Isosteareth-25 allowed in the EU?
Isosteareth-25 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Isosteareth-25 do in cosmetics?
Isosteareth-25 functions as: Surfactant - Cleansing; Surfactant - Emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: 52292-17-8.
Is Isosteareth-25 used outside cosmetics?
Isosteareth-25 also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Isosteareth-25 compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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