Is Isostearyl Alcohol safe in cosmetics?
Isostearyl Alcohol has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Emollient
Isostearyl Alcohol
Also known as: Isooctadecan-1-ol, Isooctadecyl alcohol, Aldo 66, Emery 3389, Emery H 3600 (+12 more)
INCI: ISOSTEARYL ALCOHOL
Isostearyl Alcohol (CAS 27458-93-1) is a cosmetic emollient functioning as Emollient, Skin Conditioning. 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 27458-93-1 →
Auto-generated CPSR Part A draft with source citations
Function
Emollient, Skin Conditioning
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
16-methylheptadecan-1-ol
InChIKey
WNWHHMBRJJOGFJ-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not restricted
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Isostearyl Alcohol.
Calculate MoS for your specific formulation with the MoS Calculator.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
100 - 1,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Additional Ingredient Properties
3 property records from structured ingredient metadata.
comedogenicity_detail
{"comedogenicity_rating": "2", "irritancy_rating": "0", "skin_type_suitability": "all,dry,combination,normal", "acne_safe": "caution", "source": "Cosmetic formulation"}
emulsion_hlb
{"hlb_required_as_emulsifier": "no", "hlb_required_of_oil_phase": "15", "co_emulsifier_pairs": "isosteareth_20,polysorbate_60", "optimal_oil_phase_pct": "15-38", "optimal_water_phase_pct": "62-85", "droplet_size_range_um": "5-42", "creaming_resistance": "moderate", "coalescence_resistance": "excellent", "ostwald_ripening_resistance": "good", "freeze_thaw_stability": "good", "rheology_modifier_type…
solubility_hlb
{"water_soluble": "no", "oil_soluble": "yes", "hlb_required": "13.0", "soluble_in": "oils, ethanol", "insoluble_in": "water, glycerin, propylene glycol", "log_p": "7.9", "melting_point_c": "-10", "appearance": "clear liquid", "source": "Alzo"}
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Safety (1)
Endocrine Disruptors
Potential endocrine disrupting compound
Source: NORMAN Suspect List Exchange
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Fragrance
Softener and conditioner
Stabilizing agent
Thickening agent
Viscosity modifier
Regulatory List Membership (2)
IFRA Fragrance Transparency List
Consumer Product Chemical
Expert Verdict
Expert safety assessment and concern-level summary for Isostearyl Alcohol.
Regulatory Flags
ifra_fragrance
Known Synonyms
Isooctadecan-1-ol
Isooctadecyl alcohol
Aldo 66
Emery 3389
Emery H 3600
FOC 1800
Fine Oxocol 180
Jarcol I 18EX
Jarcol I-18CG
Prisorene 3515
Prisorine 3514
Prisorine ISOH 3515
Risonol 18SP
Speziol C 18 ISOC
Witcohol 66
isooctadecane-1-ol
BRANCHED FATTY ALCOHOL (C18)
Chemical Function
Softener and conditioner
Viscosity modifier
Thickening agent
Stabilizing agent
Fragrance
Regulatory Lists
Europe; plastic_additive
IFRA Transparency
inert_ingredient; Pesticides
consumer_product
inert_ingredient; non_food_use; Pesticides
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Isostearyl Alcohol allowed in the EU?
Isostearyl Alcohol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Isostearyl Alcohol do in cosmetics?
Isostearyl Alcohol functions as: Emollient, Skin Conditioning. It is classified as a Emollient in our database. CAS number: 27458-93-1.
Is Isostearyl Alcohol used outside cosmetics?
Isostearyl Alcohol 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 Isostearyl Alcohol compliance across multiple jurisdictions:
Ingredient Decoder
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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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