Dimethiconol/Silsesquioxane Copolymer
INCI: DIMETHICONOL/SILSESQUIOXANE COPOLYMER
Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Commercially significant copolymer, well-characterized by SEHSC/Dow Corning. Condensation product of dimethiconol and methyl trimethoxysilane with methanol released during manufacture; ensure residual methanol is controlled. D4/D5 cyclics as impurities require monitoring per EU REACH restrictions.
Frequently Asked Questions
Is Dimethiconol/Silsesquioxane Copolymer safe in cosmetics?
Commercially significant copolymer, well-characterized by SEHSC/Dow Corning. Condensation product of dimethiconol and methyl trimethoxysilane with methanol released during manufacture; ensure residual methanol is controlled. D4/D5 cyclics as impurities require monitoring per EU REACH restrictions. The EU classifies Dimethiconol/Silsesquioxane Copolymer as "permitted". Safety rating: EXCELLENT.
Is Dimethiconol/Silsesquioxane Copolymer allowed in the EU?
Dimethiconol/Silsesquioxane Copolymer EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Dimethiconol/Silsesquioxane Copolymer do in cosmetics?
Dimethiconol/Silsesquioxane Copolymer functions as: Antistatic agent; film former; hair conditioning; hair fixative; skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 68554-67-6.
What is the Margin of Safety for Dimethiconol/Silsesquioxane Copolymer?
adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
Check Dimethiconol/Silsesquioxane Copolymer compliance across multiple jurisdictions:
Related Ingredients
Is Dimethiconol/Silsesquioxane Copolymer in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Dimethiconol/Silsesquioxane Copolymer in your formulation.