Is Microspheres safe in cosmetics?
Microspheres has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Microspheres
INCI: POLYMETHYLSILSESQUIOXANE
Microspheres (CAS None) is a cosmetic uv filter / sunscreen functioning as Sensory/texture modifier in sunscreens, not as a UV filter. EU Regulation 1223/2009 status: permitted, max 4.9%. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS None →
Auto-generated CPSR Part A draft with source citations
Function
Sensory/texture modifier in sunscreens, not as a UV filter
Safety Rating
GOOD
Regulatory Status
EU EU Status
permitted
EU Max Conc.
4.9%
US US Status
permitted
US Notes
CIR Expert Panel (2018). Final Report — Polysilsesquioxanes. Released March 9, 2018, Panel Meeting December 4-5, 2017. Available via cir-safety.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Microspheres.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
2 property records from structured ingredient metadata.
sensory
{"silky": "powdery", "smooth, glides easily": "silky, velvety", "dry-touch, non-greasy": "dry, smooth", "instant": "instant", "low": "low", "w/o": "w/o", "very-high": "excellent", "no": "yes", "yes": "no", "light-diffusing": "blurring", "1.40": "1.50", "transparent": "opaque", "colorless": "white", "excellent": "excellent", "light": "light", "synthetic": "synthetic"}
silicone
{"cas_number": "68554-54-1", "silicone_class": "silsesquioxane", "molecular_weight_Da": "1800.0", "viscosity_cSt": "powder", "volatility": "non_volatile", "evaporation_rate_relative_to_D5": "0.0001", "refractive_index": "1.415", "specific_gravity": "1.3", "flash_point_C": "200.0", "surface_tension_mN_m": "24.0", "spreading_coefficient": "2.5", "film_forming_ability": "excellent", "skin_feel": "pow…
Expert Verdict
Expert safety assessment and concern-level summary for Microspheres.
Frequently Asked Questions
Is Microspheres allowed in the EU?
Microspheres EU regulatory status: permitted. Maximum allowed concentration: 4.9%. This is based on EU Regulation 1223/2009 and its amendments.
What does Microspheres do in cosmetics?
Microspheres functions as: Sensory/texture modifier in sunscreens, not as a UV filter. It is classified as a UV Filter / Sunscreen in our database. CAS number: None.
Compliance Tools
Check Microspheres compliance across multiple jurisdictions:
Ingredient Decoder
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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