Is Propylene Glycol Isostearate safe in cosmetics?
Propylene Glycol Isostearate has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Propylene Glycol Isostearate
INCI: PROPYLENE GLYCOL ISOSTEARATE
Propylene Glycol Isostearate (CAS 63799-53-1 / 68171-38-0) is a cosmetic cosmetic ingredient functioning as Skin-conditioning agent (emollient); Surfactant (emulsifying agent). EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 63799-53-1 / 68171-38-0 →
Auto-generated CPSR Part A draft with source citations
Function
Skin-conditioning agent (emollient); Surfactant (emulsifying agent)
Safety Rating
GOOD
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted for cosmetic use; CIR: safe as used (original 1999 assessment, reaffirmed 2014); reported VCRP uses (declining)
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Propylene Glycol Isostearate.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
1 property record from structured ingredient metadata.
emulsion_hlb
{"hlb_value": "2.5", "hlb_required_as_emulsifier": "yes", "emulsifier_type": "w_o", "critical_packing_parameter": "0.70-0.90", "emulsion_stabilization_mechanism": "steric_stabilization", "co_emulsifier_pairs": "sorbitan_trioleate", "optimal_oil_phase_pct": "65-90", "optimal_water_phase_pct": "10-35", "electrolyte_tolerance": "moderate", "pH_emulsion_stability_range": "6.0-11.0", "viscosity_buildin…
Expert Verdict
Expert safety assessment and concern-level summary for Propylene Glycol Isostearate.
Frequently Asked Questions
Is Propylene Glycol Isostearate allowed in the EU?
Propylene Glycol Isostearate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Propylene Glycol Isostearate do in cosmetics?
Propylene Glycol Isostearate functions as: Skin-conditioning agent (emollient); Surfactant (emulsifying agent). It is classified as a cosmetic ingredient in our database. CAS number: 63799-53-1 / 68171-38-0.
Compliance Tools
Check Propylene Glycol Isostearate 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
Alpha-Glucan Oligosaccharide-1
Excellent
Same category
Skin conditioning, cleansing, smoothi...
Ammonium Acryloyl Dimethyltaurate/Carboxyethyl Acrylate Crosspolymer
Excellent
Same category
Dispersing agent (nonsurfactant), vis...
Ammonium Cocoyl Isethionate
Excellent
Same category
Surfactant – cleansing, foaming
Ammonium Lauryl Sulfosuccinate
Excellent
Same category
Cleansing, foaming, surfactant
Ammonium Stearate
Excellent
Same category
Cleansing, surfactant, emulsifying
Apricot Kernel Oil Polyglyceryl-10 Esters
Excellent
Same category
Skin conditioning, emollient, surfact...
(AGARICUS BLAZEI FERMENT + GANODERMA LUCIDUM FERMENT + GANODERMA MULTIPILEUM FERMENT) EXTRACT
Good
Similar safety
Anti-sebum, Antioxidant, Skin Protecting
(ANGELICA ACUTILOBA/PAEONIA LACTIFLORA/REHMANNIA GLUTINOSA) ROOT/CNIDIUM OFFICINALE RHIZOME EXTRACT
Good
Similar safety
Skin Conditioning, Skin Conditioning ...
(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
PROPOLIS WAX
Good
Browse nearby
Skin Conditioning, Skin Conditioning ...
PROPYL TRIMETHICONE METHACRYLATE CROSSPOLYMER
Good
Browse nearby
Film forming, skin conditioning, text...
PROPYLIDENE PHTHALIDE
Moderate
Browse nearby
Perfuming
Is Propylene Glycol Isostearate 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 Propylene Glycol Isostearate in your formulation.