Is Isostearic Acid safe in cosmetics?
Isostearic Acid has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.
Excellent
Cosmetic Ingredient
Isostearic Acid
INCI: ISOSTEARIC ACID
Isostearic Acid (CAS 2724-58-5 / 30399-84-9 (mixture)) is a cosmetic cosmetic ingredient functioning as Emollient; surfactant–cleansing agent; fragrance ingredient. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 2724-58-5 / 30399-84-9 (mixture) →
Auto-generated CPSR Part A draft with source citations
Function
Emollient; surfactant–cleansing agent; fragrance ingredient
Safety Rating
EXCELLENT
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — no CFR restriction; CIR concluded safe in present practices of use
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Isostearic Acid.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
2 property records from structured ingredient metadata.
emulsion_hlb
{"hlb_required_as_emulsifier": "no", "hlb_required_of_oil_phase": "17", "co_emulsifier_pairs": "sodium_hydroxide,potassium_hydroxide", "optimal_oil_phase_pct": "8-22", "optimal_water_phase_pct": "78-92", "droplet_size_range_um": "3-30", "creaming_resistance": "moderate", "coalescence_resistance": "excellent", "ostwald_ripening_resistance": "good", "freeze_thaw_stability": "moderate", "rheology_mod…
solubility_hlb
{"water_soluble": "no", "oil_soluble": "yes", "hlb_required": "13.0", "soluble_in": "oils, ethanol", "insoluble_in": "water, glycerin, propylene glycol", "log_p": "7.8", "melting_point_c": "-10", "appearance": "clear liquid", "source": "Croda"}
Expert Verdict
Expert safety assessment and concern-level summary for Isostearic Acid.
Regulatory Flags
fragrance-component
Frequently Asked Questions
Is Isostearic Acid allowed in the EU?
Isostearic Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Isostearic Acid do in cosmetics?
Isostearic Acid functions as: Emollient; surfactant–cleansing agent; fragrance ingredient. It is classified as a cosmetic ingredient in our database. CAS number: 2724-58-5 / 30399-84-9 (mixture).
Compliance Tools
Check Isostearic Acid 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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