Good UV Filter / Sunscreen NOAEL Data Dermal Penetration

Polysilicone-15

INCI: POLYSILICONE-15

Polysilicone-15 (CAS 207574-74-1) is a cosmetic uv filter / sunscreen functioning as UVB filter (280-320 nm, peak 312 nm). Reported NOAEL =0.6 mg/kg bw/d in rat (SCCS Opinion); 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 207574-74-1 →

Auto-generated CPSR Part A draft with source citations
Function
UVB filter (280-320 nm, peak 312 nm)
Safety Rating
GOOD

Chemistry & Identifiers

EC Number
426-000-4

Regulatory Status

EU EU Status permitted
US US Status permitted

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Polysilicone-15.

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

10 study endpoints found for Polysilicone-15. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL =0.6 mg/kg bw/d oral rat dermal absorption SCCS Opinion
NOAEL =0.6 mg/kg bw/d oral rat dermal absorption SCCS Opinion
NOAEL =0.6 mg/kg bw/d oral rat dermal absorption SCCS Opinion
NOAEL =0.6 mg/kg bw/d oral rat dermal absorption SCCS Opinion
NOAEL =1000 mg/kg bw/day - - genotoxicity SCCS Opinion
NOAEL =1000 mg/kg bw/d oral rat dermal absorption SCCS Opinion
NOAEL =1000 mg/kg bw/day - - genotoxicity SCCS Opinion
NOAEL =1000 mg/kg bw/d oral rat dermal absorption SCCS Opinion
NOAEL =1000 mg/kg bw/day - - genotoxicity SCCS Opinion
NOAEL =1000 mg/kg bw/d oral rat dermal absorption SCCS Opinion

Dermal Penetration Profile

Skin absorption and penetration characteristics of Polysilicone-15, relevant to systemic exposure and MoS calculations.

Absorption %
0.5-2%
Penetration Level
surface
Penetration Depth
stratum corneum
Molecular Weight
Variable Da
Log P
7.5
Systemic Absorption
minimal
Topical Bioavailability
0.2-1%
Safety Margin Factor
minimal
Vehicle Dependent
Yes — absorption varies by formulation

Source: SCCS Opinion

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

EU CosIng Annex Listing

European Commission CosIng database Annex references per Regulation (EC) No 1223/2009.

Annex VI — Permitted UV Filters
Max: 10%

Expanded Jurisdictional Detail

Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.

KR Korea MFDS Annex 2 (Restricted)
Category: UV Filter. Max: 10%.
SA Saudi SFDA (VI - UV Filters)
Max: 0.1.
JPKR Japan/Korea Cosmetics
Japan (Positive (UV Absorber)): max 10.0
BRIN Brazil/India Cosmetics
India: Permitted UV Filter · max 0.1
Additional Jurisdictional Restrictions (4)
Jurisdiction Status Max % Product Type
CN permitted_uv_filter 10 All cosmetics
CN permitted_uv_filter 10 All cosmetics
IN permitted_uv_filter 10.0 sunscreen and other cosmetic products
BR permitted_uv_filter 10 Sunscreen products

Expanded Dermal Absorption Data

Cross-database dermal penetration: EPA Dryad physics-based, Roberts Mendeley permeation, and SCCS-aggregated measured values.

Aggregated DA Values (1 records across 5 sources)
Type DA % Method Skin Model SCCS Ref
measured 2.0% - - SCCS/0024

Additional Ingredient Properties

7 property records from structured ingredient metadata.

anti_pollution
{"cas_number": "207574-74-1", "ingredient_class": "blue_light_filter", "primary_mechanism": "film_forming_barrier", "pollution_types_targeted": "UV_B/partial_HEV", "IR_A_protection": "no", "visible_light_protection": "no", "digital_screen_protection_claim": "no", "PAH_neutralization": "no", "ozone_protection": "no", "mitochondrial_protection": "no", "Nrf2_activation": "no", "AhR_pathway_modulation…
baby_pediatric
{"cas_number": "207574-74-1", "ingredient_class": "sunscreen_baby", "pediatric_safety_rating": "acceptable", "minimum_age_months": "12", "neonatal_safe": "no", "premature_infant_safe": "insufficient_data", "skin_barrier_maturity_consideration": "Polymer UV filter", "transepidermal_absorption_risk_pediatric": "low", "systemic_exposure_concern_pediatric": "low", "dose_per_kg_body_weight_concern": "S…
dermal_absorption
{"molecular_weight_da": "Variable", "log_p_value": "7.5", "skin_penetration_level": "surface", "penetration_depth": "stratum corneum", "absorption_pct": "0.5-2", "systemic_absorption": "minimal", "penetration_enhancer": "no", "occlusion_effect": "yes", "vehicle_dependent": "yes", "skin_barrier_effect": "neutral", "bioavailability_topical_pct": "0.2-1", "safety_margin_factor": "minimal", "source": …
polymer
{"ingredient_class": "film_former/waterproofing_agent", "polymer_type": "silicone_based", "chemical_backbone": "other", "molecular_weight_Da_range": "8000-70000", "ionic_character": "nonionic", "pH_viscosity_sensitivity": "moderate", "salt_tolerance": "moderate", "electrolyte_effect_on_viscosity": "moderate", "temperature_viscosity_sensitivity": "moderate", "film_transparency": "transparent", "fil…
silicone
{"cas_number": "179005-80-6", "silicone_class": "silicone_resin", "molecular_weight_Da": "7200.0", "viscosity_cSt": "solid", "volatility": "non_volatile", "evaporation_rate_relative_to_D5": "0.0001", "refractive_index": "1.4135", "specific_gravity": "1.18", "flash_point_C": "205.0", "surface_tension_mN_m": "24.2", "spreading_coefficient": "2.6", "film_forming_ability": "excellent", "skin_feel": "w…
sunscreen_uv
{"cas_number": "207574-74-1", "uv_filter_type": "organic_UVB", "chemical_class": "other", "absorption_spectrum_nm_range": "290-320", "peak_absorption_wavelength_nm": "312", "molar_extinction_coefficient": "26000", "critical_wavelength_nm": "322", "UVA_PF": "2-3", "SPF_contribution_per_percent": "8.5", "photostability_rating": "photostable", "photodegradation_half_life_hours": ">18", "photostabiliz…
uv_stability
{"uv_stable": "yes", "uv_degradation_rate": "stable", "photosensitizer": "no", "phototoxic": "no", "photoallergic": "no", "requires_uv_protection_packaging": "no", "color_change_uv": "no", "odor_change_uv": "no", "efficacy_loss_uv_pct": "0", "spf_contribution": "no", "uva_protection": "no", "uvb_protection": "yes", "photostable_sunscreen": "yes", "boost_spf_of_others": "no", "antioxidant_under_uv"…

Function Categories & List Membership

Cosmetic/Chemical Function Categories
UV stabilizer
Regulatory List Membership (2)
EU Regulated in Personal Care EU CosIng Cosmetics Ingredient Database

Expert Verdict

Expert safety assessment and concern-level summary for Polysilicone-15.

Regulatory Flags

eu_cosing_listed

NOAEL Studies Summary

View details ->

Public NOAEL study rows linked to Polysilicone-15 by CAS number or substance name.

Studies
12
Lowest NOAEL
0.6
Highest NOAEL
1000

Units vary across source rows: mg/kg bw/d, mg/kg bw/day

SCCS Opinion

Dermal Absorption

View details ->
Absorption % Method Vehicle
2.0% - -

Chemical Function

UV stabilizer

Regulatory Lists

Canada; pharmaceutical

Australian Status

AICIS status: listed_with_terms

Specific information requirements: Obligations to provide information apply. You must tell us within 28 days if the circumstances of your importation or manufacture (introduction) are different to those in our assessment.

Frequently Asked Questions

Is Polysilicone-15 safe in cosmetics?

Polysilicone-15 has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted. 10 toxicological study endpoint(s) are available in our database.

Is Polysilicone-15 allowed in the EU?

Polysilicone-15 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Polysilicone-15 do in cosmetics?

Polysilicone-15 functions as: UVB filter (280-320 nm, peak 312 nm). It is classified as a UV Filter / Sunscreen in our database. CAS number: 207574-74-1.

What is the NOAEL for Polysilicone-15?

The NOAEL (No Observed Adverse Effect Level) for Polysilicone-15 is =0.6 mg/kg bw/d based on a dermal absorption study via oral route in rat. A total of 10 study endpoints are available. Source: SCCS Opinion.

Is Polysilicone-15 used outside cosmetics?

Polysilicone-15 also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Polysilicone-15 have different safety status in cosmetics vs industrial chemicals?

Polysilicone-15 is classified GHS Danger (H330, H413) in the chemicals database but is allowed in EU cosmetics.

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Not Reported

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