Is Silicone Copolyol safe in cosmetics?
Silicone Copolyol has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Silicone Copolyol
INCI: DIMETHICONE COPOLYOL
Silicone Copolyol (CAS 64365-23-7 (Dimethicone Copolyol, the most common silicone copolyol)) is a cosmetic cosmetic ingredient functioning as Emulsifying, Hair Conditioning, Skin Conditioning, Surfactant. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
Auto-generated CPSR Part A draft with source citations
CAS Number
64365-23-7 (Dimethicone Copolyol, the most common silicone copolyol)
View industrial chemical safety profile →
Function
Emulsifying, Hair Conditioning, Skin Conditioning, Surfactant
Safety Rating
GOOD
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not specifically restricted by FDA; CIR has reviewed dimethicone copolyol and related silicones as safe in cosmetics
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Silicone Copolyol.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
7 property records from structured ingredient metadata.
comedogenicity_detail
{"comedogenicity_rating": "1", "irritancy_rating": "0", "skin_type_suitability": "all,combination,normal", "acne_safe": "yes", "source": "Silicone emollient"}
ecotoxicity
{"biodegradable": "no", "biodegradation_days": "1200+", "bioaccumulative": "yes", "aquatic_toxicity_level": "low", "coral_reef_safe": "unknown", "marine_toxicity": "low acute toxicity", "freshwater_toxicity": "very persistent", "soil_toxicity": "sediment accumulation", "endocrine_disruptor": "no", "persistent_organic_pollutant": "yes", "microplastic": "no", "nano_particle": "no", "hawaii_banned": …
emulsion_hlb
{"hlb_value": "8.0", "hlb_required_as_emulsifier": "yes", "emulsifier_type": "w_o", "critical_packing_parameter": "0.45-0.60", "emulsion_stabilization_mechanism": "steric_stabilization", "co_emulsifier_pairs": "cyclopentasiloxane,dimethicone", "optimal_oil_phase_pct": "40-70", "optimal_water_phase_pct": "30-60", "electrolyte_tolerance": "low", "pH_emulsion_stability_range": "5.0-9.5", "viscosity_b…
hair_care
{"hair_function": "conditioning", "hair_type_suitability": "all", "curl_pattern_suitability": "all", "porosity_suitability": "all", "protein_sensitivity": "neutral", "moisture_protein_balance": "yes", "cg_method_approved": "water-soluble", "silicone_type": "not-a-sulfate", "sulfate_type": "no", "drying_alcohol": "no", "fatty_alcohol": "yes", "heat_protectant": "yes", "color_safe": "neutral", "kera…
hair_conditioning
{"cas_number": "68937-54-2", "ingredient_class": "silicone_conditioner", "chemical_type": "dimethicone", "substantivity_to_hair": "good", "deposition_from_shampoo": "yes", "deposition_from_conditioner": "yes", "conditioning_mechanism": "film_forming_emulsifying", "hair_penetration": "surface_only", "molecular_weight_effect_on_penetration": "water_soluble_silicone", "wet_combing_force_reduction_pct…
ph_stability
{"optimal_ph_min": "3.0", "optimal_ph_max": "10.0", "stable_ph_min": "3.0", "stable_ph_max": "11.0", "ph_dependent_function": "Water-soluble silicone", "formulation_note": "Emollient", "source": "Formulation literature"}
silicone
{"cas_number": "64365-23-7", "silicone_class": "dimethicone", "molecular_weight_Da": "2800.0", "viscosity_cSt": "200", "volatility": "non_volatile", "evaporation_rate_relative_to_D5": "0.016", "refractive_index": "1.408", "specific_gravity": "1.055", "flash_point_C": "118.0", "surface_tension_mN_m": "24.3", "spreading_coefficient": "2.8", "film_forming_ability": "good", "skin_feel": "silky", "slip…
Expert Verdict
Expert safety assessment and concern-level summary for Silicone Copolyol.
Frequently Asked Questions
Is Silicone Copolyol allowed in the EU?
Silicone Copolyol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Silicone Copolyol do in cosmetics?
Silicone Copolyol functions as: Emulsifying, Hair Conditioning, Skin Conditioning, Surfactant. It is classified as a cosmetic ingredient in our database. CAS number: 64365-23-7 (Dimethicone Copolyol, the most common silicone copolyol).
Compliance Tools
Check Silicone Copolyol compliance across multiple jurisdictions:
Ingredient Decoder
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Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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