Is Isododecane safe in cosmetics?
Isododecane has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Isododecane
Also known as: Creasil ID-CG, Fancol ID, Hyfrane 120, Permethyl 99, Permethyl 99A (+2 more)
INCI: ISODODECANE
Isododecane (CAS 31807-55-3) is a cosmetic cosmetic ingredient functioning as solvent. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 31807-55-3 →
Auto-generated CPSR Part A draft with source citations
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not a sunscreen active, preservative, or drug ingredient. CIR Expert Panel concluded isoparaffins including isododecane are safe in current practices of use and concentration when formulated to be non-irritating. No specific numeric upper concentration limit imposed.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Isododecane.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
2 property records from structured ingredient metadata.
ecotoxicity
{"biodegradable": "partial", "biodegradation_days": "90-180", "bioaccumulative": "yes", "aquatic_toxicity_level": "low", "coral_reef_safe": "unknown", "marine_toxicity": "volatile but persistent", "freshwater_toxicity": "surface film", "endocrine_disruptor": "no", "persistent_organic_pollutant": "no", "microplastic": "no", "nano_particle": "no", "hawaii_banned": "no", "eu_restricted_environmental"…
synergy
{"inci_name_2": "Dimethicone", "synergy_type": "sensory-improvement", "synergy_description": "Volatile hydrocarbon with silicone for waterproof elegant texture", "combined_benefit": "Water-resistant, elegant dry touch, non-greasy, long-lasting", "efficacy_multiplier": "2.1x", "mechanism_of_action": "Isododecane evaporates leaving dimethicone film providing water resistance with elegant feel", "opt…
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Fragrance
Softener and conditioner
Solvent
Regulatory List Membership (2)
IFRA Fragrance Transparency List
Consumer Product Chemical
Expert Verdict
Expert safety assessment and concern-level summary for Isododecane.
Regulatory Flags
eu-unrestricted
cir-approved
no-sccs-opinion
ifra_fragrance
Known Synonyms
Creasil ID-CG
Fancol ID
Hyfrane 120
Permethyl 99
Permethyl 99A
Purolan IDD
EINECS No.: 250-816-8
Chemical Function
Solvent
Softener and conditioner
Fragrance
Regulatory Lists
IFRA Transparency
consumer_product
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Isododecane allowed in the EU?
Isododecane EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Isododecane do in cosmetics?
Isododecane functions as: solvent. It is classified as a cosmetic ingredient in our database. CAS number: 31807-55-3.
Compliance Tools
Check Isododecane 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
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