Is Isocetyl Stearoyl Stearate safe in cosmetics?
Isocetyl Stearoyl Stearate has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Isocetyl Stearoyl Stearate
Also known as: Octadecanoic acid, 12-[(1-oxooctadecyl)oxy]-, isohexadecyl ester, isohexadecyl 12-[(1-oxooctadecyl)oxy]octadecanoate, EINECS 306-621-6, Ceraphyl 791, EC No.: 306-621-6 (+1 more)
INCI: ISOCETYL STEAROYL STEARATE
Isocetyl Stearoyl Stearate (CAS 97338-28-8) is a cosmetic cosmetic ingredient functioning as Emollient, viscosity controlling, pigment dispersant. NOAEL 1000 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); 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 97338-28-8 →
Auto-generated CPSR Part A draft with source citations
Function
Emollient, viscosity controlling, pigment dispersant
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
14-methylpentadecyl 12-octadecanoyloxyoctadecanoate
InChIKey
OUZJJDFOKSDCHY-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted; CIR has reviewed fatty acid esters as safe
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Isocetyl Stearoyl Stearate.
Calculate MoS for your specific formulation with the MoS Calculator.
Pre-Calculated Safety Assessment
Pre-calculated NOAEL → SED → MoS audit trail for Isocetyl Stearoyl Stearate across SCCS product categories, with measured dermal absorption where available.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
1 - 10 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Softener and conditioner
Viscosity modifier
Expert Verdict
Expert safety assessment and concern-level summary for Isocetyl Stearoyl Stearate.
Known Synonyms
Octadecanoic acid, 12-[(1-oxooctadecyl)oxy]-, isohexadecyl ester
isohexadecyl 12-[(1-oxooctadecyl)oxy]octadecanoate
EINECS 306-621-6
Ceraphyl 791
EC No.: 306-621-6
306-621-6
Chemical Function
Softener and conditioner
Viscosity modifier
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Isocetyl Stearoyl Stearate allowed in the EU?
Isocetyl Stearoyl Stearate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Isocetyl Stearoyl Stearate do in cosmetics?
Isocetyl Stearoyl Stearate functions as: Emollient, viscosity controlling, pigment dispersant. It is classified as a cosmetic ingredient in our database. CAS number: 97338-28-8.
Is Isocetyl Stearoyl Stearate used outside cosmetics?
Isocetyl Stearoyl Stearate 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 Isocetyl Stearoyl Stearate 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
Related Ingredients
Acacia Decurrens/Jojoba/Sunflower Seed Wax Polyglyceryl-3 Esters
Excellent
Same category
Skin conditioning emollient, texturizer
Acetic/Linoleic/Palmitic Triglyceride
Excellent
Same category
Skin conditioning (emollient)
Acetyl Ornithine
Excellent
Same category
Emollient
Acetyl Proline
Excellent
Same category
Emollient
Acetyl Triethylhexyl Citrate
Excellent
Same category
Emollient, Film Forming, Plasticiser
Acetyl Trihexyl Citrate
Excellent
Same category
Plasticiser, Skin Conditioning (Emoll...
(AGARICUS BLAZEI FERMENT + GANODERMA LUCIDUM FERMENT + GANODERMA MULTIPILEUM FERMENT) EXTRACT
Good
Similar safety
Anti-sebum, Antioxidant, Skin Protecting
(ANGELICA ACUTILOBA/PAEONIA LACTIFLORA/REHMANNIA GLUTINOSA/SCUTELLARIA BAICALENSIS) ROOT/(CNIDIUM OFFICINALE/COPTIS CHINENSIS) RHIZOME/GARDENIA JASMINOIDES FRUIT/PHELLODENDRON CHINENSE BARK EXTRACT
Good
Similar safety
(ANGELICA GIGAS/GLYCYRRHIZA URALENSIS/REHMANNIA GLUTINOSA ROOT)/ANGELICA GIGAS STEM/CARTHAMUS TINCTORIUS FLOWER/(CARTHAMUS TINCTORIUS/PRUNUS PERSICA SEED)PORIA COCOS WATER
Good
Similar safety
Humectant, Skin Conditioning, Skin Pr...
(ANGELICA KEISKEI/CHRYSANTHEMUM ZAWADSKII) LEAF/STEM/CINNAMOMUM CASSIA BARK/TRICHOSANTES KIRILOWII FRUIT/ULMUS DAVIDIANA BARK/ROOT/(PAEONIA JAPONICA/BUPLEURUM FALCATUM/POLYGALA TENUIFOLIA ROOT)/VISCUS ALBUM STEM EXTRACT
Good
Similar safety
Anti-seborrheic, Anti-sebum, Antioxid...
(APPLE/CITRUS JUNOS/LENTIL/PEAR/PUMPKIN/STRAWBERRY/TOMATO FRUIT)/CORN KERNEL/(ARCTIUM LAPPA/BRASSICA OLERACEA ACEPHALA/CABBAGE/CAMELLIA SINENSIS/MORINGA OLEIFERA/RADISH/SPINACH LEAF)/(SORGHUM BICOLOR LEAF/STEM)/OAT MEAL/POTATO PULP/(CARROT/NELUMBO NUCIFERA/RADISH/WILD YAM ROOT)/(AMARANTHUS HYPOCHONDRIACUS/CASHEW/CICER ARIETINUM/COIX LACRYMA-JOBI MA-YUEN /MACADAMIA TERNIFOLIA/PHASEOLUS ANGULARIS/PISTACIA VERA/RHYNCHOSIA NULUBILIS/RICE/SESAME/SETARIA ITALICA/SOYBEAN/SWEET ALMOND/WHEAT SEED)/HORDEUM VULGARE SPROUT/CYPERUS ESCULENTUS TUBER/ARTEMISIA PRINCEPS/BROCCOLI/CHENOPODIUM QUINOA/ENTEROMORPHA COMPRESSA/HORDEUM VULGARE/IPOMOEA BATATAS/LAMINARIA JAPONICA/LENTINUS EDODES/PLEUROTUS OSTREATUS/PORPHYRA TENERA/UNDARIA PINNATIFIDA EXTRACT
Good
Similar safety
Antioxidant
(ARCTIUM LAPPA/CARROT/COLOCASIA ESCULENTA/DIOSCOREA BATATAS/GARLIC/GINGER/IPOMOEA BATATAS/NELUMBO NUCIFERA/ONION/POTATO BULBS)/(CHESTNUT/CITRUS UNSHIU/EGGPLANT/FIG/GRAPE/KIWI/LYCOPERSICON ESCULENTUM/MALUS PUMILA/MUME/PEACH/PLUM/PUMPKIN/PYRUS SEROTINA/RADISH/ZIZIPHUS JUJUBA FRUIT)/(ALLIUM TUBEROSUM/ALOE BARBADENSIS/ANGELICA UTILIS/BRASSICA OLERACEA ACEPHALA/CABBAGE/CELERY/SACCHARINA JAPONICA/UNDARIA PINNATIFIDA LEAF)/(ALLIUM FISTULOSUM/ENTEROMORPHA COMPRESSA/OENANTHE JAVANICA STALK)/LENTINULA EDODES/SUCROSE FERMENT FILTRATE
Good
Similar safety
Humectant, Skin Conditioning - Humect...
OCTACOSANYL GLYCOL
Good
Chemical family
Light Stabilizer, Skin Conditioning -...
ISOBORNYL DIPROPYLENE GLYCOL ETHERS
Good
Browse nearby
Antifoaming, Emulsion Stabilising, So...
ISOBUTYL METHACRYLATE/TRIFLUOROETHYLMETHACRYLATE/BIS-HYDROXYPROPYL DIMETHICONE ACRYLATE COPOLYMER
Good
Browse nearby
Film Forming, Hair Fixing
Is Isocetyl Stearoyl Stearate in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Isocetyl Stearoyl Stearate in your formulation.