Divinyldisiloxane

INCI: DIVINYLDISILOXANE (ALSO KNOWN AS 1,3-DIVINYL-1,1,3,3-TETRAMETHYLDISILOXANE)

CAS Number
2627-95-4 (based on chemical identity - 1,3-divinyltetramethyldisiloxane).
Function
Primarily a crosslinking agent / chemical intermediate used in the synthesis of silicone elastomers and crosspolymers rather than a direct functional cosmetic ingredient.
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not specifically prohibited or restricted.

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

As a reactive vinyl siloxane monomer, residual levels in finished products should be minimized. Not intended for direct skin application at high concentrations.. Clear, low-viscosity liquid; the divinyl functionality makes it the key crosslinker in hydrosilylation-cured (platinum-catalyzed) silicone elastomer systems - it is the building block behind many of the crosspolymer ingredients listed above.

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Concern Level: Moderate

Frequently Asked Questions

Is Divinyldisiloxane safe in cosmetics?

As a reactive vinyl siloxane monomer, residual levels in finished products should be minimized. Not intended for direct skin application at high concentrations.. Clear, low-viscosity liquid; the divinyl functionality makes it the key crosslinker in hydrosilylation-cured (platinum-catalyzed) silicone elastomer systems - it is the building block behind many of the crosspolymer ingredients listed above. The EU classifies Divinyldisiloxane as "prohibited". Safety rating: MODERATE.

Is Divinyldisiloxane allowed in the EU?

Divinyldisiloxane EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Divinyldisiloxane do in cosmetics?

Divinyldisiloxane functions as: Primarily a crosslinking agent / chemical intermediate used in the synthesis of silicone elastomers and crosspolymers rather than a direct functional cosmetic ingredient.. It is classified as a cosmetic ingredient in our database. CAS number: 2627-95-4 (based on chemical identity - 1,3-divinyltetramethyldisiloxane)..

What is the Margin of Safety for Divinyldisiloxane?

not established 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.

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